Question

(1) State the energy conversion taking place in a solar cell. 

(2) Give disadvantage of using a solar cell. 

Answer 1

(1) In a solar cell, the light energy directly changes to electric energy. 

Disadvantage of using a solar cell 

(2) 

1. Solar cell does not produce electric energy during night or in darkness. 

2. High cost 

3. Loss efficiency : A solar cell can convert only about 25% of the light.