Teaching HSSC TGT 2023 Mock Test (Latest Pattern) Physics Waves The Speed of Sound

A sound wave has a frequency of 4 kHz and wave length 40 cm. How long will it take to travel 2.5 km?

1

2.1 seconds

2

4.12 seconds

3

3.45 seconds

4

1.56 seconds

5

Not Attempted

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