MCQ
A spectral line $\lambda = 5000 \mathring A $ in the light coming from a distant star is observed as a $5200 \mathring A .$ What will be recession velocity of the star
- A$1.15 \times 10^7 \mathrm{~cm} / \mathrm{sec}$
- ✓$1.15 \times 10^7 \mathrm{~m} / \mathrm{sec}$
- C$1.15 \times 10^7 \mathrm{~km} / \mathrm{sec}$
- D$1.15 \mathrm{~km} / \mathrm{sec}$
