Question
Physics Question on the earth's magnetic field
A galaxy is moving away from the Earth so that a spectral line at 600 nm is observed at 601 nm . Then the speed of the galaxy with respect to the Earth is
A
500 km s-1
B
50 km s-1
C
200 km s-1
D
20 km s-1
Answer
500 km s-1
Explanation
Solution
The correct answer is Option (A) : 500 km s-1