A source of sound is travelling at \( \frac{100}{3} \mathrm{~m} / \...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=9VLr67-IaZQ


Duration: 2:03
10 views
0

A source of sound is travelling at \( \frac{100}{3} \mathrm{~m} / \mathrm{sec} \) along a road, towards a point \( A \), when the source is \( 3 \mathrm{~m} \)
\( \mathrm{P} \) away from \( A \), a person standing at a point \( O \) on a road at perpendicular position. The distance of \( O \)
W from \( A \) at that time is \( 4 \mathrm{~m} \). If the original frequency is \( 640 \mathrm{~Hz} \), then the value of apparent frequency listened by person is: (speed of sound is \( 340 \mathrm{~m} / \mathrm{sec} \) )
(1) \( 620 \mathrm{~Hz} \)
(2) \( 680 \mathrm{~Hz} \)
(3) \( 720 \mathrm{~Hz} \)
(4) \( 840 \mathrm{~Hz} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-04-08A sound source is moving towards a stationary observer with \( (1 /...
2023-04-08A man standing on a platform observes that the \( \mathrm{P} \) fre...
2023-04-08A car travelling towards a hill at \( 10 \mathrm{~m} / \mathrm{s} \...
2023-04-08In a closed end pipe of length \( 105 \mathrm{~cm} \), standing wav...
2023-04-08If a star emitting light of wavelength \( 5000 \AA \) is moving tow...
2023-04-08Oxygen is 16 times heavier than hydrogen. At NTP \( \mathrm{P} \) e...
2023-04-08An observer moves towards a stationary source of sound, with a velo...
2023-04-08A sound-source is moving in a circle and an observer is outside the...
2023-04-08\( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) are three tuning ...
2023-04-08Two sources of sound are moving in opposite directions with velocit...
2023-04-08A source of sound is travelling at \( \frac{100}{3} \mathrm{~m} / \...
2023-04-08A tuning fork of frequency \( 340 \mathrm{~Hz} \) is sounded above ...
2023-04-08Two identical wires are stretched by the same P tension of \( 100 \...
2023-04-08The first resonance length of a resonance tube is 40 \( \mathrm{P} ...
2023-04-08If vibrations of a string are to be increased by a P factor of two,...
2023-04-08Two sound waves of wavelengths \( \mathrm{P} \) \( \lambda_{1} \) a...
2023-04-08Two sound waves of wavelength \( 1 \mathrm{~m} \) and \( 1.01 \math...
2023-04-08A tuning fork of frequency \( 500 \mathrm{~Hz} \) is sounded on a \...
2023-04-08A tuning fork of frequency \( 256 \mathrm{~Hz} \) is moving \( \mat...
2023-04-08A sonometer wire under a tension of \( 10 \mathrm{~kg} \) weight \(...
2023-04-08When a source is going away from a stationary \( \mathrm{P} \) obse...


Tags:
pw