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The frequency of radio waves corres...

The frequency of radio waves corresponding to a wavelength of 10 m is

A

` 3 xx 10 ^7 ` Hz

B

` 3.3 xx 10 ^ 8 ` Hz

C

` 3 xx 10^9 ` Hz

D

` 3 xx 10 ^ ( - 7 ) ` Hz

Text Solution

Verified by Experts

The correct Answer is:
A
Wavelength `, lamda = 10 ` m
` c = 3xx 10 ^( 8) m s ^ ( -1 ) `
By using ` c = v lamda `
` rArr v = ( c ) /( lamda ) = ( 3xx 10 ^( 8 ))/( 10 )= 3xx 10 ^( 7 ) ` Hz
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