The velocity of an electron in ground state of H-atom is nea... | PHYSICS - BOHR MODEL OF THE HYDROGEN ATOM | SolveeIt | Solveeit

Today, August 19

Question

The velocity of an electron in ground state of H-atom is nearly –

A

2 × 10⁵ m/s

B

2 × 10⁶ m/s

C

2 × 10⁷ m/s

D

2 × 10⁸ m/s

Answer

2 × 10⁶ m/s

Explanation

Solution

v = 2.16 × 10⁶ $\left( \frac{Z}{n} \right)$

Z = 1, n = 1 ̃ v = 2.16 × 10⁶ m/s