travelling at a speed v towards the left. The number of positive crests striking in a time interval of 3 s on the wall is

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A sound wave of wavelength λ travels towards the right horizontally with a velocity V. It strikes and reflects from a vertical plane surface, travelling at a speed v towards the left. The number of positive crests striking in a time interval of 3 s on the wall is
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Oct
A sound wave of wavelength λ travels towards the right horizontally with a velocity V. It strikes and reflects from a vertical plane surface, travelling at a speed v towards the left. The number of positive crests striking in a time interval of 3 s on the wall is A sound wave of wavelength λ [...]
Posted in: Cengage JEE Mains Physics by B.M Sharma , Chapter 16 - Waves and Acoustics ,
Tags: A sound wave of wavelength λ travels towards the right horizontally with a velocity V. It strikes and reflects from a vertical plane surface , travelling at a speed v towards the left. The number of positive crests striking in a time interval of 3 s on the wall is ,