Question

What is the wavelength for a hydrogen atom in which the electron transitions from n=5 to n=1?

Answer 1

Answer:

Correct option is

C

4→3

λ

1

=R(

n

1

2

1

−

n

2

2

1

)

for UV n

1

=1 and n

2

=5, λ=

R

1.04

for infrared the wavelength must be greater the UV wavelength.

For n

1

=3 and n

2

=4 , λ=

R

7.2

. This is the largest wavelength we can get