Question

The radius of 5th Bohr orbit in hydrogen atom is
(to Raduis of 1st orbit of H-atom)
(1) 5ro
(2)ro/5
(3) 25ro
(4)ro/25​

Answer 1

Answer:

The radius of 5th Bohr orbit in hydrogen atom is 25ro

Explanation:

H atom z = 1

n = 5

now,

rn = ro × n²/z

r5 = ro × 25/1

r5 = 25ro

hope u understand