cameroon gce A level June 2017 physics 1

cameroon gce A level June 2017 physics 1

cameroon gce A level June 2017 physics 1

1. which of the following phenomena provides evidence that light has a wave nature?

A. Emission of light from energy – level transmission in atoms

B. Diffraction of light passing through a narrow opening

C. Absorption of light by a black sheet of paper

D. Photoelectric effect