Physics - Sound Wave Question with Solution | TestHub
PhysicsSound WaveWavesMedium2 minQB
PhysicsMediumsingle choice
Distinguish between sound and radio waves of the same frequency (say 15 kHz). Which statement is correct?
Options:
Answer:
B
Solution:
Sound needs a medium and travels at about 340 m/s in air. Radio waves are electromagnetic and travel at m/s even in vacuum. At 15 kHz the wavelengths are about 2.3 cm and 20 km respectively.
Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves
⏱ 2mℹ️ Source: QB
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