Model Questions and Answers for preparing Kerala PSC Last Grade Examination 2014.
Energy
1. The capacity to do work is known as?
Answer: Energy
2. Law of conservation of energy is introduced by?
Answer: Einstein
3. Prime source of energy?
Answer: Sun
4. Instrument used to convert mechanical energy into electrical energy?
Answer: Dynamo, Generator
5. Instrument used to convert chemical energy into electrical energy?
Answer: Cell
6. …………… convert electrical energy into light energy?
Answer: Electric bulb
7. Solar energy can be converted into electrical energy using?
Answer: Solar cell
8. Solar cells are made of?
Answer: Semiconductor materials
9. Semiconductors of solar cells are made with?
Answer: Germanium and Silicon
Post a Comment