Question

Check the correctness of the following statements regarding Bohr model of hydrogen atom

(i) The angular momentum of electron in n = 2 orbit is more than in the n = 1 orbit

(ii) The KE of electron in the n = 2 orbit is more than in the n = 1 orbit

(iii) The acceleration of electron in the n = 2 orbit is more than in the n =1 orbit

Mark which of the following is correct ?

• A. Only (i) and (ii) are correct
• B. Only (ii) and (iii) are correct
• C. Only (iii) and (i) are correct
• D. All the statements are correct

Answer 1

Answer: (C)

Only (iii) and (i) are correct

Answer 2

L = mv r = $\frac{nh}{2\pi}$

KE = $\frac{1}{2}$ $\frac{KZe^{2}}{r}$; a = $\frac{v^{2}}{r}$