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CBSE XII
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Physics
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Wave optics
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Q)
The
6563
A
∘
H
2
line emitted by hydrogen in a star is found to be red shifted by
15
∘
, Estimate the speed with which the star is reading from earth .
6.86
×
10
5
m
s
−
1
6.86
×
10
6
m
s
−
1
−
6.86
×
10
5
m
s
−
1
−
6.86
×
10
6
m
s
−
1
Share
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