Waves - Result Question 17

17. The speed of a wave in a medium is 960m/s. If 3600 waves are passing through a point in the medium in 1min., then the wavelength of the wave is

[1997]

(a) 8m

(b) 12m

(c) 16m

(d) 20m

Show Answer

Answer:

Correct Answer: 17. (c)

Solution:

  1. (c) Given speed of wave (v)=960m/s

Frequency of wave (f)=3600/min

=360060rev/sec=60rev per sec.

Wavelength of waves (λ)=vf=96060=16m.

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