1)

 A sound  wave of freequency v Hz  initially travels a distance of 1 km in air . Then , it gets reflected into a water reservoir  of depth 600 m. The frequency of the wave at the bottom of the reservoir is

 $(V_{air}=340 m/s, V_{water}=1484 m/s)$ 


A) > v Hz

B) < v Hz

C) v Hz

D) 0(the sound wave gets attenuated by water completely)

Answer:

Option C

Explanation:

The frequency of sound wave remains constant