Practicing Success
Practicing Success
CUET Preparation Today
At what speed should a galaxy move with respect to earth so that spectral line of 600.0 nm appears as 600.6 nm? |
$3×10^6 m s^{-1}$ $3×10^5 m s^{-1}$ $5×10^6 m s^{-1}$ $5×10^5 m s^{-1}$ |
$3×10^5 m s^{-1}$ |
The correct answer is Option (2) → $3×10^5 m s^{-1}$ |
