Physics - Sound Wave Question with Solution | TestHub
PhysicsSound WaveDopler's effectMedium3 minQB
PhysicsMediumsingle choice
Passage / Comprehension
A car traveling at 25 m/s is approaching a stationary wall. Wind is blowing in a direction opposite to the car at 5 m/s. At an instant the car driver briefly blows the horn. He heard an echo exactly seconds after sounding the horn and notes that its frequency is 156 Hz. (Take speed of sound as 330 m/s.)
The actual frequency of the horn is:
Options:
Answer:
A
Solution:
Effective speed of sound toward wall:
m/s
Back with wind:
m/s
Hz
Subject:PhysicsTopic:Sound WaveSubtopic:Dopler's effect
⏱ 3mℹ️ Source: QB
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