If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits a photon of wavelength $$\lambda$$. When it jumps from the 4th orbit to the 3rd orbit, the corresponding wavelength of the photon will be

A

$$\frac{9}{16}\lambda$$

B

$$\frac{20}{7}\lambda$$

C

$$\frac{20}{13}\lambda$$

D

$$\frac{16}{25}\lambda$$