The line emitted by hydrogen atom in a star is found to be red shifted by . The speed with which the star is receding from the earth is |
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a) |
b) |
c) |
d) |
The line emitted by hydrogen atom in a star is found to be red shifted by . The speed with which the star is receding from the earth is |
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a) |
b) |
c) |
d) |