Magnitude of wave vector of an e.m.wave with frequency 150 MHz is ....

1.	Magnitude of wave vector of an e.m.wave with frequency 150 MHz is ...... rad/s.
Answer» `PI` `pi/2` `(3pi)/(2)` `(3pi)/(4)` SOLUTION :We know, `v= (omega)/(k)` `therefore k = (omega)/(v) = (2pi f )/ (c ) (because` for e.m. wave we have v =c) `therefore k = (2 xx pi xx 150 xx 10^(6))/( 3xx 10 ^(8))` `therefore k = pi rad //m`

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