Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesMedium2 minQB

PhysicsMediummultiple choice

A horn of frequency 1000 Hz on a stationary car faces a wall approaching at 30 m/s (speed of sound 330 m/s). Which statements are correct?

Answer:

A, C

Solution:

The wall receives $1000 \times \frac{360}{330}$ Hz. Reflected: $\frac{360}{330} \times \frac{330}{300} \times 1000 = 1200$ Hz, a 20% increase.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

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