?A digital signal possesses:
1). Continuously varying values
2). only two discrete values
3). Only four discrete values
4). None of the above
1. Which among the following waves is used for communication by artificial satellites
2. The weakest of all fundamental forces is
3. Water is used in car radiator because of its
4. Nuclear Fission is caused by the impact of
5. When a running car stops suddenly, the passengers tends to lean forward because of:
6. What is the principle of a Life Jacket
7. What is the study of Moon called?
8. Unit of impedance is ___________.
9. A small piece of a substance is weakly attracted by a strong magnetic field. The substance is