A parallel beam of fast movingelectrons is incident normally on a narrow slit. A fluorescent screen is placed at a large distance from theslit. If the speed of the electronsis increased, which of the following statements is correct ?

A

The angular width of the central maximum will be unaffected.

B

Diffraction pattern is not observed on the |screen in the case of electrons.

C

The angular width of the central maximum of the diffraction pattern will increase.

D

The angular width of the central maximum will decrease.