Questions
The apparent wavelength of light from a star moving away from the earth is 0.02% more than the actual wavelength.'What is the velocity of star ?
detailed solution
Correct option is B
Δλλ=VC 0⋅20100=V3×108 or V=0⋅02×3×108100 v=60km/sTalk to our academic expert!
Similar Questions
A radar sends a radio signal of frequency 9 x 109 Hz towards an aircraft approaching the radar. If the reflected wave shows a frequency shift of 3 x 103 Hz, the speed with which the aircraft is approaching the radar, in m/s is (velocity of the radio signal is 3 x 108 m/s
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