Question

the wavelength in A° of a emission line obtained for li²+ during an electrical transition from n2=2and n1=1 is
a)3R/4
b)4/3R
c)27R/4
d)4/27R

R is rydberg constant​

Answer 1

Answer:

3R

4

1/λ=R(1/n

1

2

−1/n

2

2

)z

2

1/λ=R(1/1

2

−1/2

2

)

1/λ=R(3/4)

λ=4/3R