A person driving car at a constant speed of 15 ~m / s is approaching a vertical wall. The person notices a change of 40 ~Hz in the frequency of his car's horn upon reflection from the wall. The frequency of horn is _ _ _ _ _ _ _ H z. (Given: Speed of sound: 330 ~m / s)

Oscillations and Waves: JEE Main 2023 Physics question

JEE Main 2023 · 6 Apr, Morning shift · Q75

JEE Main 20236 Apr, Morning shiftPhysicsMediumOscillations and Waves185× since 2002

A person driving car at a constant speed of

15 \mathrm{~m} / \mathrm{s}

is approaching a vertical wall. The person notices a change of

40 \mathrm{~Hz}

in the frequency of his car's horn upon reflection from the wall. The frequency of horn is _______________

\mathrm{Hz}

. (Given: Speed of sound :

330 \mathrm{~m} / \mathrm{s}

)

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 Oscillations and Waves Question with Answer (6 Apr Morning shift, Q75) | JEE Arc