Waves Part 2

Section: Physics
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Question : 38 of 52
 
Marks: +1, -0
A person driving car at a constant speed of 15m∕ s is approaching a vertical wall. The person notices a change of 40‌Hz in the frequency of his car's horn upon reflection from the wall. The frequency of horn is Hz.
[6-Apr-2023 shift 1]
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