Question

An electronin the hydrogen atom moves from the state n=2 to n=1.if ek and ep represent the kinetic energy and potential energy of an electron due to transition

Answer 1

Answer:

Given,

Electron in Bohr's orbit of hydrogen atom passes from state n=2 to n=1,

KE of an electron in nth orbit : K

n

∝

n

2

1

and PE of an electron in nth orbit : U

n

∝

n

2

1

∴ When an electron passes from state n = 2 to n = 1

K

1

K

2

=

2

2

1

2

=

4

1

or K

1

=4K

2

U

1

U

2

=

2

2

1

2

=

4

1

or U

1

=4U

2