Teaching RSMSSB Lab Assistant (Science) 2022 Mock Test Physics Waves The Speed of Sound

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 sound recorded by an observer in air is:

1

3000 Hz

2

1500 Hz

3

600 Hz

4

120 Hz

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