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A plane weve of sound travelling in air ...

A plane weve of sound travelling in air is incident upon a plane water surface. The angle of incidence is `60^(@)`. If velocity of sound in air and water are `330 m//s` and `1400 m//s`, then the wave undergoes

A

refraction only

B

reflection only

C

Both reflection and refraction

D

neither reflection nor refraction

Text Solution

Verified by Experts

The correct Answer is:
B
`sin theta_(c) = (330)/(1400) = 0.2357`
`:. Theta_(C) = 13.6^(@)`
Since, `I gt theta_(C')` therefore only reflection will take place.
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