An electron changes its position from orbit `n = 4` to the orbit `n = 2` of an atom. The wavelength of the emitted radiation's is `(R =` Rydberg's constant)

Options

A. `(16)/(R)`
B. `(16)/(3R)`
C. `(16)/(5R)`
D. `(16)/(7R)`

Answer

B

Explanation

`(1)/(lamda) = R [(1)/(2^(2))- (1)/(4^(2))] rArr lamda= (16)/(3R)`