An electron in H-atom makes a transition from n = 3 to n = 1... | PHYSICS - BOHR MODEL OF THE HYDROGEN ATOM | SolveeIt | Solveeit

Today, August 19

Question

An electron in H-atom makes a transition from n = 3 to n = 1. The recoil momentum of H-atom will be-

A

6.45 × 10^–27 N s

B

6.8 × 10^–27 N s

C

6.45 × 10^–24 N s

D

6.8 × 10^–24 N s

Answer

6.45 × 10^–27 N s

Explanation

Solution

$\frac{E}{c} = \frac{12.09 \times 1.6 \times 10^{- 19}}{3 \times 10^{8}}N\mspace{6mu} s$ = 6.45 × 10^–27 N