{"id":70,"date":"2019-10-02T13:57:16","date_gmt":"2019-10-02T13:57:16","guid":{"rendered":"http:\/\/talib.pk\/test-preparation\/?p=70"},"modified":"2020-09-15T16:10:47","modified_gmt":"2020-09-15T11:10:47","slug":"1st-year-physics-chapter-08-waves-online-mcqs-with-answers","status":"publish","type":"post","link":"https:\/\/talib.pk\/test-preparation\/1st-year-physics-chapter-08-waves-online-mcqs-with-answers\/","title":{"rendered":"Physics Chapter 08 Waves Online Mcqs 1st Year with Answers"},"content":{"rendered":"<div class=\"28d95f43054b69d67289d6316e9506d8\" data-index=\"1\" style=\"float: none; margin:12px 0 12px 0; text-align:center;\">\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- talib-new -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3438155045791616\"\r\n     data-ad-slot=\"6774242552\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Check out the Physics Chapter 08 Waves Online Mcqs 1st Year with Answers here. This chapter is about the studies of waves and their properties. Waves carry energy without carrying matter. Waves contain Progressive waves which have two kinds i.e. Transverse and Longitudinal waves. Periodic waves also consist of two kinds i.e. Transverse Periodic Waves and Longitudinal Periodic Waves. Waves also travel by the speed of sound in air. The speed of sound in the air can be affected by a change in Density and Temperature. Waves also show Reflection. Stationary waves have two sections (in a stretched string and in an air column). The most important one is the Doppler Effect. Doppler Effect has many applications in daily life. So, if you want to check the important MCQs of this chapter, then scroll down and get on this page.<\/p>\n<h2 style=\"text-align: center;\">Physics Chapter 08 Waves Online Mcqs 1st Year with Answers<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-381 aligncenter\" src=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs-1.jpg\" alt=\"Physics Chapter 08 Waves Online Mcqs 1st Year with Answers\" width=\"300\" height=\"300\" srcset=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs-1.jpg 300w, https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs-1-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3>KEY POINTS<\/h3>\n<div class=\"lightbulb tie-list-shortcode\">\n<ul>\n<li>Progressive Waves<\/li>\n<li>Periodic Waves<\/li>\n<li>Speed of sound in air<\/li>\n<li>Effect of Pressure, Density, and Temperature on the speed of sound in air<\/li>\n<li>Principle of Superposition<\/li>\n<li>Interference<\/li>\n<li>Beats<\/li>\n<li>Reflection of Waves<\/li>\n<li>Stationary Waves<\/li>\n<li>Stationary waves in a Stretched String<\/li>\n<li>Stationary waves in air columns<\/li>\n<li>Doppler Effect<\/li>\n<li>Applications of Doppler Effect<\/li>\n<\/ul>\n<\/div>[\/box]\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #ff6600;\">Question#1<\/span>. Which of the following is not the property of sound?<\/strong><\/p>\n<ul>\n<li>It can travel in a vacuum<strong><br \/>\n<\/strong><\/li>\n<li>It is reflected<\/li>\n<li>It shows phenomenon interference<\/li>\n<li>It is propagated as longitudinal wave<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>It can travel in a vacuum<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#2.<\/span> The wave that requires a material medium for their propagation are called?<\/strong><\/p>\n<ul>\n<li>Matter waves<\/li>\n<li>Electromagnetic waves<\/li>\n<li>Carrier waves<\/li>\n<li>Mechanical waves<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Mechanical waves<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#3<\/span>. Which organ produces a better quality of sound?<\/strong><\/p>\n<ul>\n<li>Closed organ pipe<\/li>\n<li>Open organ pipe<strong><br \/>\n<\/strong><\/li>\n<li>Both a and b<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Open organ pipe<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#4<\/span>. When two identical traveling waves are superimposed, the velocity of the resultant wave:<\/strong><\/p>\n<ul>\n<li>Decreases<\/li>\n<li>Increases<\/li>\n<li>Remains unchanged<strong><br \/>\n<\/strong><\/li>\n<li>Becomes zero<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Remains unchanged<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#5<\/span>. In vibrating cord, the points where the amplitude is maximum, are called?<\/strong><\/p>\n<ul>\n<li>Antinodes<\/li>\n<li>Nodes<\/li>\n<li>Troughs<strong><br \/>\n<\/strong><\/li>\n<li>Crests<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Troughs<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#6<\/span>. Echo is the phenomenon of?<\/strong><\/p>\n<ul>\n<li>Interference of sound<\/li>\n<li>Reflection of sound<\/li>\n<li>Refraction of sound<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>None of these<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#7<\/span>. The phase difference between particles being on either side of a node?<\/strong><\/p>\n<ul>\n<li>\u03c0<\/li>\n<li>\u03c0\/2<\/li>\n<li>2\u03c0<strong><br \/>\n<\/strong><\/li>\n<li>\u03c0\/4<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>2\u03c0<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#8<\/span>. If the stretching force T of wire increases, then its frequency?<\/strong><\/p>\n<ul>\n<li>Decreases<\/li>\n<li>Increases<\/li>\n<li>Remains the same<strong><br \/>\n<\/strong><\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Remains the same<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#9<\/span>. A stationary wave is set up in the air column of a closed pipe. At the closed end of the pipe.<\/strong><\/p>\n<ul>\n<li>Always a node is formed<\/li>\n<li>Always an antinode is formed<\/li>\n<li>Neither nod nor antinode is formed<\/li>\n<li>Sometimes a node and sometimes an antinode is formed<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Sometimes a node and sometimes an antinode is formed<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#10<\/span>. It is possible to distinguish between transverse and longitudinal waves form the property of?<\/strong><\/p>\n<ul>\n<li>Refraction<\/li>\n<li>Polarization<\/li>\n<li>Interference<\/li>\n<li>Diffraction<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Refraction<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#11<\/span>. According to Newton sound travel in the air under the conditions of which type of process?<\/strong><\/p>\n<ul>\n<li>Adiabatic<\/li>\n<li>Isothermal<\/li>\n<li>Isobaric<strong><br \/>\n<\/strong><\/li>\n<li>Isochoric<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Isobaric<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#12<\/span>. Beats are result of?<\/strong><\/p>\n<ul>\n<li>Diffraction<\/li>\n<li>Constructive interference<\/li>\n<li>Destructive interference<\/li>\n<li>Alternate constructive and destructive interference<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Destructive interference<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#13<\/span>. The velocity of sound in a vacuum is?<\/strong><\/p>\n<ul>\n<li>332ms<sup>-1<\/sup><\/li>\n<li>320ms<sup>-1<\/sup><\/li>\n<li>Zero<strong><br \/>\n<\/strong><\/li>\n<li>224ms<sup>-1<\/sup><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Zero<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#14<\/span>. Increase in the velocity of sound in the air of 1\u00b0C rise in temperature is?<\/strong><\/p>\n<ul>\n<li>1.61ms<sup>-1<\/sup><\/li>\n<li>61.0ms<sup>-1<\/sup><\/li>\n<li>0.61ms<sup>-1<\/sup><\/li>\n<li>2.00ms<sup>-1<\/sup><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>61.0ms<sup>-1<\/sup><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#15<\/span>. Energy is not transferred by?<\/strong><\/p>\n<ul>\n<li>Longitudinal waves<\/li>\n<li>Transverse waves<\/li>\n<li>Stationary waves<\/li>\n<li>Electromagnetic waves<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Transverse waves<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#16<\/span>. On loading the pong of a tuning fork with wax, its frequency?<\/strong><\/p>\n<ul>\n<li>Increases<\/li>\n<li>Decreases<\/li>\n<li>Remains unchanged<\/li>\n<li>May increase or decrease<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>May increase or decrease<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#17<\/span>. The velocity of sound in the air would become double then its velocity at 0\u00b0C at temperature?<\/strong><\/p>\n<ul>\n<li>313\u00b0C<\/li>\n<li>586\u00b0C<\/li>\n<li>819\u00b0C<\/li>\n<li>1172\u00b0C<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>1172\u00b0C<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#18<\/span>. At antinodes produced in sound waves:<\/strong><\/p>\n<ul>\n<li>The pressure is minimum and velocity is maximum<\/li>\n<li>The pressure is maximum and velocity is minimum<\/li>\n<li>Pressure is\u00a0 maximum<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Pressure is maximum and velocity is minimum<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#19<\/span>. For ultrasonic waves:<\/strong><\/p>\n<ul>\n<li>Frequency is in the audible range<\/li>\n<li>Frequency is greater than 20 kHz<\/li>\n<li>Frequency lower than 20 Hz<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Frequency lower than 20 Hz<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#20<\/span>. The periodic alternation of sound between the maximum and minimum loudness is called?<\/strong><\/p>\n<ul>\n<li>Silence zone<\/li>\n<li>Interference<\/li>\n<li>Beats<\/li>\n<li>Resonance<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Interference<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#21<\/span>. The number of beats produced per second is equal to?<\/strong><\/p>\n<ul>\n<li>The sum of frequencies of two tuning forks<\/li>\n<li>The difference of frequencies of two tuning forks<\/li>\n<li>The ratio of the frequencies of two tuning forks<\/li>\n<li>The frequency of either of two tuning forks<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>The difference of frequencies of two tuning forks<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#22<\/span>. A wave in soft string reflects from a hard steel rod. Its phase difference relative in the incident wave will be?<\/strong><\/p>\n<ul>\n<li>0\u00b0<\/li>\n<li>90\u00b0<\/li>\n<li>180\u00b0<\/li>\n<li>76\u00b0<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>76\u00b0<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#23<\/span>. Silence zone takes place due to:<\/strong><\/p>\n<ul>\n<li>Constructive interference<\/li>\n<li>Destructive interference<\/li>\n<li>Beats<\/li>\n<li>Resonance<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Resonance<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#24<\/span>. Doppler effect applies to:<\/strong><\/p>\n<ul>\n<li>Sound wave only<\/li>\n<li>Lightwave only<\/li>\n<li>Both sound and light waves<\/li>\n<li>Neither sound nor lightwave<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Both sound and light waves<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#25<\/span>. Do dolphins navigate by using?<\/strong><\/p>\n<ul>\n<li>Echolocation<\/li>\n<li>Doppler effect<\/li>\n<li>Reflection of waves<\/li>\n<li>All of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of these<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#26<\/span>. To monitor blood flow through major arteries, ultrasonic waves of which frequencies are employed?<\/strong><\/p>\n<ul>\n<li>5 to 10 Hz<\/li>\n<li>5 to 10 MHz<\/li>\n<li>15 \u2013 to 100 MHz<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>5 to 10 Hz<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#27<\/span>. Which one is the correct relation for fundamental frequency of open and closed pipe?<\/strong><\/p>\n<ul>\n<li>f<sub>open<\/sub> = 2 f<sub>closed<\/sub><\/li>\n<li>f<sub>closed<\/sub> = 2f<sub>open<\/sub><\/li>\n<li>f<sub>open<\/sub> = f<sub>closed<\/sub><\/li>\n<li>f<sub>open<\/sub>\u00a0= 1\/f<sub>closed<\/sub><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>f<sub>open<\/sub> = 1\/f<sub>closed<\/sub><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#28<\/span>. In open organ pipe:<\/strong><\/p>\n<ul>\n<li>Only even harmonics are present<\/li>\n<li>Only odd harmonics are present<\/li>\n<li>Both even and odd harmonics are present<\/li>\n<li>Selected harmonics are present<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Selected harmonics are present<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#29<\/span>. Which one is the correct relation for speed of sound?<\/strong><\/p>\n<ul>\n<li>V<sub>Newton<\/sub> = V<sub>Laplace<\/sub><\/li>\n<li>V<sub>Newton<\/sub> = \u03b3V<sub>Laplace<\/sub><\/li>\n<li>V<sub>Newton<\/sub> = \u221aV<sub>Laplace<\/sub><\/li>\n<li>V<sub>Laplace<\/sub> = \u221aV<sub>Newton<\/sub><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>V<sub>Newton<\/sub> = \u221aV<sub>Laplace<\/sub><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#30<\/span>. If the temperature increases the frequency of tuning fork?<\/strong><\/p>\n<ul>\n<li>Increases<\/li>\n<li>Decreases<\/li>\n<li>No change<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>No change<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#31<\/span>. The particles in the wave separated through _______ multiple of \u03bbare out of phase to each other.<\/strong><\/p>\n<ul>\n<li>(n)<\/li>\n<li>(n+1)<\/li>\n<li>(n+1\/2)<\/li>\n<li>Both a and c<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>(n+1)<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#32<\/span>. Waves are produced at the surface of the water by a pencil executing periodic motion if held vertically at a frequency of 50Hz are?<\/strong><\/p>\n<ul>\n<li>Longitudinal<\/li>\n<li>Transverse<\/li>\n<li>Periodic<\/li>\n<li>Both b and c<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Longitudinal<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#33<\/span>. Newton formula estimated the speed of sound?<\/strong><\/p>\n<ul>\n<li>281ms<sup>-1<\/sup><\/li>\n<li>333ms<sup>-1<\/sup><\/li>\n<li>340ms<sup>-1<\/sup><\/li>\n<li>All of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>333ms<sup>-1<\/sup><\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#34<\/span>. Laplace found that the alternate compression and refractions produced in sound waves follow?<\/strong><\/p>\n<ul>\n<li>Isothermal law<\/li>\n<li>Adiabatic law<\/li>\n<li>Isochoric law<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of the above<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#35<\/span>. For destructive interference of sound waves, the path difference between two interfering sounds should be?<\/strong><\/p>\n<ul>\n<li>n\u03bb<\/li>\n<li>(n+1\/2) \u03bb<\/li>\n<li>Sometimes n\u03bb and sometimes (n+1\/2) \u03bb<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Sometimes n\u03bb and sometimes (n+1\/2)<\/strong> <strong>\u03bb<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#36<\/span>. The speed of sound in hydrogen is _________ time than that in oxygen?<\/strong><\/p>\n<ul>\n<li>Two times<\/li>\n<li>Three times<\/li>\n<li>Four times<\/li>\n<li>Six times<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Two times<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#37<\/span>. The beats frequency (sensible) for a human car is?<\/strong><\/p>\n<ul>\n<li>24Hz<\/li>\n<li>10Hz<strong><br \/>\n<\/strong><\/li>\n<li>12Hz<\/li>\n<li>16Hz<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>10Hz<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#38<\/span>. The speed of stationary waves in a stretched string is independent of?<\/strong><\/p>\n<ul>\n<li>Number of loops<\/li>\n<li>Tension in the string<\/li>\n<li>Point where a string is plucked<\/li>\n<li>Both a and c<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Point where string is plucked<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#39<\/span>. If two waves of the amplitude of \u2018x\u2019 produce a resultant wave of amplitude \u2018x\u2019 then the phase difference between them will be?<\/strong><\/p>\n<ul>\n<li>60\u00b0<\/li>\n<li>120\u00b0<\/li>\n<li>180\u00b0<\/li>\n<li>0\u00b0<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>60\u00b0<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question#40<\/span>. Which phenomenon can be applied to estimate the velocity of the star with respect to Earth?<\/strong><\/p>\n<ul>\n<li>Doppler\u2019s effect<\/li>\n<li>Interference of waves<\/li>\n<li>Beats phenomenon<\/li>\n<li>All of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Beats phenomenon<\/strong>\n\t\t\t<\/div><\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Check out the Physics Chapter 08 Waves Online Mcqs 1st Year with Answers here. This chapter is about the studies of waves and their properties. Waves carry energy without carrying matter. Waves contain Progressive waves which have two kinds i.e. Transverse and Longitudinal waves. Periodic waves also consist of two kinds i.e. Transverse Periodic Waves &hellip;<\/p>\n","protected":false},"author":2,"featured_media":381,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/70"}],"collection":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/comments?post=70"}],"version-history":[{"count":0,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/70\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media\/381"}],"wp:attachment":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media?parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/categories?post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/tags?post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}