Question

When an electron jumps from a level n=4 to n=1, momentum of the recoiled hydrogen atom will be
​

Answer 1

Answer:

Momentum of the recoiled hydrogen atom

= momentum of the emitted photon =

c

hν

=

λ

h

=hR[

n

1

2

1

−

n

2

2

1

]

=6.6×10

−34

×10

7

[

1

2

1

−

4

2

1

]

=6.5×10

−27

kgms

−1

Answer 2

Answer:

A)

Explanation:

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