A wave is moving with a speed of 3000 cm/s with reversal after every 0.01s. The wavelength of the wave is--------

Given:

T = 0.1 sec 

V = 3000 m/s

V = νλ = λ/T  ( as ν = 1/T )

3000 =  λ/0.1

 λ = 30 m

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speed = wavelength multiplied by frequency

30 m/s = 0.01*frequency

so frequency = 30/0.01

                        or 30 * 1/100

                           =3/10 m ANS

  • -1
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