wave-optics

Question: A star emitting light of wavelength 5896 Å is moving away from the earth with a speed of 3600 km / sec. The wavelength of light observed on earth will



1) Decrease by 5825.25 Å
2) Increase by 5966.75 Å
3) Decrease by 70.75 Å
4) Increase by 70.75 Å ($c = 3 \times {10^8}m/\sec $is the speed of light)
Solution: Explanation: No Explanation
Doppler's Effect of Light

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