A person observes two moving trains, 'A' reaching the station and 'B' leaving the station with equal speed of 30 ~m / s. If both trains emit sounds with frequency 300 ~Hz, (Speed of sound: 330 ~m / s) approximate difference of frequencies heard by the person will be:

Oscillations and Waves: JEE Main 2023 Physics question

JEE Main 2023 · 29 Jan, Morning shift · Q8533

JEE Main 202329 Jan, Morning shiftPhysicsMediumOscillations and Waves185× since 2002

A person observes two moving trains, 'A' reaching the station and 'B' leaving the station with equal speed of

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

. If both trains emit sounds with frequency

300 \mathrm{~Hz}

, (Speed of sound:

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

) approximate difference of frequencies heard by the person will be:

JEE Main 2023 Oscillations and Waves Question with Solution (29 Jan Morning shift, Q8533) | JEE Arc