Physics - Sound Wave Question with Solution | TestHub
PhysicsSound WaveWavesMedium2 minQB
PhysicsMediumsingle choice
A machine gun is mounted on a tank that is moving at a speed of 20 m s⁻¹ away from a target, with the gun pointing in a direction opposite to the direction of motion of the tank (toward the target). The muzzle speed of the bullet equals the speed of sound = 340 m s⁻¹. Then:
Options:
Answer:
B
Solution:
The bullet now moves at m/s relative to the ground (taking the target on the side the gun points to), which is less than 340 m/s. The sound arrives earlier.
Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves
⏱ 2mℹ️ Source: QB
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