A source of sound \( S \) emitting waves of frequency \( 100 \mathrm{~Hz} \) and an observer \( ...

Channel:
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=F6MGHSoeyx0



Duration: 5:23
5 views
0


A source of sound \( S \) emitting waves of frequency \( 100 \mathrm{~Hz} \) and an observer \( O \) are located at some distance from each other. The source is moving with a speed of \( 19.4 \mathrm{~ms}^{-1} \) at an angle of \( 60^{\circ} \) with the source observer line as shown in the figure. The observer is at rest. The apparent frequency observed by the observer (velocity of sound in air is \( 330 \mathrm{~ms}^{-1} \) ), is
(a) \( 100 \mathrm{~Hz} \)
(b) \( 103 \mathrm{~Hz} \)
(c) \( 106 \mathrm{~Hz} \)
(d) \( 97 \mathrm{~Hz} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2022-11-07I. In a standing wave, the disturbance produced is confined to the region where it is produced. ...
2022-11-07A wave is incident obliquely on the boundary between two different media. I. The incident and th...
2022-11-071. A steel bar possesses both bulk and shear elastic moduli. Il. A steel bar can propagate both ...
2022-11-07A pebble is dropped in a pond of still water to disturb the water surface. I. The disturbance pr...
2022-11-07A rocket is moving at a speed of \( 220 \mathrm{~ms}^{-1} \) towards a stationary target, emits ...
2022-11-07Assertion Superposition of two harmonic waves, one of frequency \( 11 \mathrm{~Hz} \) and the ot...
2022-11-07Assertion Speed of sound is more in liquids and solids than gases. Reason Liquids and solids hav...
2022-11-07Assertion Transverse waves are possible in solids and strings (under tension) but not in fluids....
2022-11-07Assertion To hear different beats, difference of the frequencies of two sources should be less t...
2022-11-07Assertion Longitudinal waves can be propagated through solids and fluids both. Reason Solids as...
2022-11-07A source of sound \( S \) emitting waves of frequency \( 100 \mathrm{~Hz} \) and an observer \( ...
2022-11-07A stationary observer receives sound from two identical tuning forks, one of which approaches an...
2022-11-07Two cars moving in opposite directions approach each other with speed of \( 22 \mathrm{~m} / \ma...
2022-11-07A source of sound \( S \) is moving with a velocity of \( 50 \mathrm{~m} / \mathrm{s} \) towards...
2022-11-07Assertion The light emitted by stars, which are hundreds of light years away, reaches us through...
2022-11-07A siren emitting sound of frequency \( 500 \mathrm{~Hz} \) is fitted on a car moving towards a v...
2022-11-07Two sitar strings \( A \) and \( B \) playing the note 'Dha' are slightly out of tune and produc...
2022-11-07When two tuning forks (fork 1 and fork 2 ) are sounded simultaneously, 4 beats/s are heard. Now,...
2022-11-07A source of unknown frequency gives 4 beats/s when sounded with a source of known frequency \( 2...
2022-11-07Doppler effect is a wave phenomenon, which holds for (a) sound waves only (b) electromagnetic wa...
2022-11-07A tuning fork is used to produce resonance in a glass tube. The length of the air column in this...



Tags:
pw