Physics Quiz - 1, General Knowledge

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

The absorption of ink by blotting paper involves

Nuclear sizes are expressed in a unit named

Light year is a unit of

Mirage is due to

Light from the Sun reaches us in nearly

Stars appears to move from east to west because

Pa(Pascal) is the unit for

Planets do not twinkle because

Metals are good conductors of electricity because

Let a thin capillary tube be replaced with another tube of insufficient length then, we find water

Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?

If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same

Pick out the scalar quantity

Rectifiers are used to convert

out of the following, which is not emitted by radioactive substance?

Sound waves in air are

Magnetism at the centre of a bar magnet is

It is more difficult to walk on a sandy road than on a concrete road because

Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2

Of the following properties of a wave, the one that is independent of the other is its

An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is