Which of the below forms of energy can directly be converted to light energy?

I.Chemical II.Sound III.Electricity

A. I and II only
B. II and III only
C. I, II and III
D. I and III only

Correct Answer:

Option D – I and III only

Explanation

Sound cannot be converted to light energy. Therefore chemical energy and electrical energy can be converted to light energy. So chemical energy and electrical energy is the amswer.