Question

In Bohr’s model hydrogen atom, the single electron rotates around the nucleus in a circle of radius of 53 × 10⁻¹² m making 6.6 × 10¹⁵ revolutions each second. What is the magnetic field at the centre ? 

(a) 7 testa 

(b) 9 testa 

(c) 12.5 testa 

(d) 11 testa

Answer 1

Correct option (c) 12.5 testa

Explanation:

The frequency of the electron 

Now magnetic field at the centre is