Question

When an electron in hydrogen atom revolves in stationary orbit, it ______.

Options

• does not radiate light though its velocity changes. 

• does not radiate light and velocity remains unchanged.

• radiates light but its velocity is unchanged. 

• radiates light with the change of energy.

Answer 1

When an electron in hydrogen atom revolves in stationary orbit, it does not radiate light though its velocity changes.

Explanation:

According to Bohr's quantisation principle, an electron rotating in a fixed-energy orbit will not emit light. Change in velocity brought on by an electron's changing orbital direction.