Two waves of wavelength 1 . 00 m and 1 . 01 m produces 10 beats in 3 s . What is the velocity of the wave?

Question

Two waves of wavelength 1 . 00 m and 1 . 01 m produces 10 beats in 3 s . What is the velocity of the wave?, 150 m s - 1, 115.2 m s - 1, 336.6 m s - 1, 200 m s - 1

MARKS App · Accepted Answer

v 1 = v λ 1 = v 1.00 a n d v 2 = v λ 2 = v 1.01 ∴ ∆ v = v 1 - v 2 = v 1 1.00 - 0 1.01 = 10 o r v = 10 × 1 × 1.01 0.01 = 1010 f o r 3 s ∴ v = 336.6 m s - 1

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