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a whistle sends out 256 waves in a second. if the whistle apporoach the observer with velocity1/3 of the velocity of sound in air ,the no. of waves per second the obserever will receive
Asked by zebaalim | 25 May, 2022, 13:24: PM
answered-by-expert Expert Answer
Observed frequency fobs of a source that emits sound waves at frequency 256 and
approaches the observer at (1/3) of speed of sound v is given as
 
begin mathsize 14px style f subscript o b s end subscript space equals space fraction numerator v over denominator v minus v subscript S end fraction cross times f end style
where vs is approaching speed of source to observer.
 
begin mathsize 14px style f subscript o b s end subscript space equals space fraction numerator v over denominator v minus left parenthesis 1 divided by 3 right parenthesis v end fraction cross times 256 space equals space 3 over 2 cross times 256 space equals space 384 space H z end style
Answered by Thiyagarajan K | 25 May, 2022, 19:21: PM
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NEET neet - Physics
a sonometer wire emits a fundamental note of frequency 150 hz calculate the frequency of note emitted when tension is change in the ratio of 9:16 and length of 1:2
Asked by shobhaguduru02 | 09 Jul, 2024, 20:21: PM
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question 16
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Asked by purvi16saini2004 | 15 Jul, 2022, 12:49: PM
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NEET neet - Physics
a whistle sends out 256 waves in a second. if the whistle apporoach the observer with velocity1/3 of the velocity of sound in air ,the no. of waves per second the obserever will receive
Asked by zebaalim | 25 May, 2022, 13:24: PM
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please answer this ?
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At which temperature the speed of sound in hydrogen will be same as that of speed of sound in oxygen at 100 degree Celsius 
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