The most penetrating radiation out of?the following is
1). X - rays
2). $alpha$ - rays
3). $beta$ - rays
4). $gamma$ - rays
1. Electric power is measured in units of
2. The speed of light will be minimum while passing through
4. The first law of thermodynamics is simply the case of
5. Stars which appear single to the naked eye but are double when seen through a telescope are
6. Cloudy nights are warmer compared nights because clouds mainly
7. A particle is thrown vertically upward. When it reaches the highest point, it has
8. Which of the following is biodegradable?