1.
A loudspeaker converts
Answer : A. electrical energy into sound energy
2.
The formula to calculate the force is
Answer : A. F = ma
3.
Non-conventional source of energy best suited for India is
Answer : A. Solar energy
4.
Which of the following functions is performed by a photo-cell?
Answer : D. It converts light energy into electrical energy
5.
Which one of the following device converts electrical energy into mechanical energy
Answer : D. electric motor
6.
In a dynamo
Answer : A. Mechanical energy is converted into electrical energy