Question

If the speed of a wave is 340 m/s and its frequency is 1700 Hz, then λ for this wave in cm will be (a) 2
(b) 0.2
(c) 20
(d) 200

Answer 1

Answer:

option b

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Answer 2

Answer:

Given: Velocity of the wave = 340 m/s

Frequency of the wave = 1,700 Hz

So, we can find the wavelength by λ=νf,

where λ is the wavelength, ν the velocity, and f the frequency.

So,

λ=340 /1700m  =20 cm

Ans: (c) 20 cm.