An observer is moving with half the speed of light towards stationary microwave source emitting w…

PW Solutions

An observer is moving with half the speed of light towards stationary microwave source emitting waves at frequency 10 GHz. What is the frequency of the microwave measured by the observer (speed of light =3 × 10^8 ms^-1 )
(a) 15.3 GHz
[JEE (Main) 2017]
(c) 12.1 GHz
(b) 10.1 GHz
(d) 17.3 GHz

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