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Velocity of sound is given by the expres...

Velocity of sound is given by the expression, `v= f xx lambda`
Where, v= velocity of the wave,
f = frequency, `lambda` = wavelength
Using the above information answer the following questions
Calculate the wavelength of radio waves of frequency `10^(9)` Hz. The speed of radio waves is `3 xx 10^(8)m//s`

A

20 cm

B

35cm

C

30 cm

D

25 cm

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