wave-optics

Question: The 6563 Å line emitted by hydrogen atom in a star is found to be red shifted by 5 Å. The speed with which the star is receding from the earth is

1) $17.29 \times 10^9$ m/s

2) $4.29 \times 10^7$ m/s

3) $3.39 \times 10^5$ m/s

4) $2.29 \times 10^5$ m/s

Solution:

Explanation: No Explanation

Doppler's Effect of Light

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