Question

Difference between n^th and (n + 1)^th Bohr's radius of hydrogen atom is equal to (n –1)^thBohr's radius. The value of n is

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (D)

4

Answer 2

$r_{n} \times n^{2}$

(n + 1)2 – (n)² = (n –1)²

\ n = 4