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 CExplanation:The frequency of sound wave remains constant
