Question

in hydrogen atom electron excites from ground state to higher energy state and its orbital velocity is reduced to (1/3)rd of its initial value.the radius of the orbit in the ground state is R.the radius of the orbit in that higher energy state is​

Answer 1

Answer:

9r

Explanation:

Velocity of electron in nth orbit is inversely proportional to n.

vn∝n1

Given: 

v1vn=31

⟹n=3

Radius of electron in nth orbit is proportional to n2.

rn∝n2

Hence, r3=9r1=9R