Question

A photovoltaic substance absorbs a photon of yellow light and immediately emits an ultraviolet photon. Identify which of the following explain this ?

• A. Fluorescence
• B. Influorescence
• C. Phosphorescence
• D. Photoluminescence
• E. This is not possible

Answer 1

The correct option is E This is not possible

When a photovoltaic substance absorbs a photon of sufficient frequency , the photon is disappeared and an electron is emitted from the surface of substance, this is called photoelectric effect .As a photon is just a packet of energy and it vanishes when absorbed by substance , so it is impossible for it to create (or emit) another photon of different frequency.