Q. The absorption of ink by blotting paper involves ?
? Capillary action phenomenon
Q. Nuclear sizes are expressed in a unit named
Q. Light year is a unit of
Q. Mirage is due to
? unequal heating of different parts of the atmosphere.
Q. Light from the Sun reaches us in nearly
? 8 minutes
Q. Pa(Pascal) is the unit for
Q. Pick out the scalar quantity
Q. Sound waves in air are
Q. Magnetism at the centre of a bar magnet is
Q. Lux is the SI unit of
? Intensity of illumination