[" 27.A source of wound of fingurence "600" .It is placod inside water.The speed of "6],[" and in air a "300m/s" .The ferevence of sound reconded by an observer,when "],[[" (a) "200Hz," (b) "3000Hz]]

A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m//s and in air it is 300 m//s . The frequency of sounds recorded by an observer who is standing in air is :-

A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m//s and in air it is 300 m//s . The frequency of sounds recorded by an observer who is standing in air is :-

A source of sound of frequency 600Hz is placed inside of water. The speed of sound is water is 1500m//s and air it is 300m//s . The frequency of sound recorded by an observer who is standing in air is

A source of sound of frequency 600Hz is placed inside of water. The speed of sound is water is 1500m//s and air it is 300m//s . The frequency of sound recorded by an observer who is standing in air is

A source of sound of frequency 750 Hz is placed inside water. The speed of sound in water is 1500 m//s and in air is 340 m//s . The frequency of sound recorded by an observer who is standing in air is

A source of sound of frequency 512 Hz is placed inside water. The speed of sound in water is 1482 m s^(-1) and in air it is 320 m s^(-1) . The frequency of sound recorded by an observer who is standing in air is