Question
Physics Question on The Line Spectra of the Hydrogen Atom
At what speed should a galaxy move with respect to earth so that spectral line of 600.0 nm appears as 600.6 nm?
A
3 × 106 ms-1
B
3 × 105 ms-1
C
5 × 106 ms-1
D
5 × 105 ms-1
Answer
3 × 105 ms-1
Explanation
Solution
The correct option is (B): 3 × 105 ms-1