some important question answer on physics:
1. The pressure exerted on the ground by a man greatest - When he stands on the toes of the foot.
2. A man with a dark skin, in comparison with a man with a white skin, will experience - Less heat and less cold.
3. One can distinguish a telescope from microscope by observing - Size of the lens.
4. In an atomic explosion enormous energy is released which is due to the - Conversion of mass in a energy.
5. How can boiling point of a liquid be reduced?
ans: By decreasing the pressure of the liquid.
6. Optical fibre are mainly used for- Communication.
7. The dark line in the solar spectrum are due to.
ans: Absorption of corresponding wavelength by the outer layers of the sun.
8. In an atomic nucleus, which cannot be read easily, can be read by- Exchange forces.
9. Mho is the unit of - Conductivity.
10. Nuclear fission is caused by the impact of - Neutron.
