Q 1149667513.     A transverse sinusoidal wave of amplitude a, wavelength λ and frequency `f` is travelling on a stretched string. The maximum speed of any point on the string is v/`10`, where v is the speed of propagation of the wave. If `a = 10^3` m and `v = 10` m/s, then which of the following is correct.

JEE 1998
A

`λ = 10^(–3)` m

B

`f = 10^4`Hz

C

`λ = 2π × 10^(–2)` m

D

`f=10^3/(2π) ` Hz

HINT

Maximum speed of any point on the string = `aω =a(2πf)`

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