The celebrated scientist Isaac is _____.

1. 1. Dutch
   2. British
   3. Italian
   4. French

Isaac Newton gave _____.

1. 1. Law of Geometry
   2. Law of Planetary Motion
   3. Law of Motion and Law of Gravitation
   4. All of these

Special theory of relativity was proposed by _____.

1. 1. Albert Einstein
   2. Galilee
   3. Robert Hook
   4. Isaac Newton

Heat received by earth from the Sun is knows as _____.

1. 1. Solar heat
   2. Solar radiation
   3. thermal radiation
   4. Insulation

Why is a cyclist required to bend inwards while moving in a circular path _____.

1. 1. To make the center of gravity fall with the base
   2. To keep the vehicle on the road
   3. To produce the necessary centripetal force required to keep him moving in a curved path
   4. None of these

Tiredness is felt on the top of the mountains because of _____.

1. 1. Low pressure outside the body
   2. Low temperature
   3. High pressure outside the body
   4. High temperature

When a vehicle passes, TV reception gets distorted. This is because of _____.

1. 1. Passing vehicle affects the sophisticated TV components
   2. Metal reflects radio-waves
   3. Spark plug creates electromagnetic disturbances
   4. Modern vehicles use electronic ignition system

A ship rises as it enters the sea from a river because the _____.

1. 1. Density of sea water is lower than that the river water
   2. Density of seat water is higher than that of the river water
   3. Water in sea is hard water
   4. Larger quantity of water in the sea pushes the ship upwards

One should not connect a number of electric appliances to the same power socket because _____

1. 1. The appliances will not get proper current
   2. This can damage the appliances
   3. This can damage the domestic wiring due to overheating
   4. The appliances will not get full voltage

The difference between a nuclear reactor and and atomic bomb is that _____.

1. 1. The chain reaction in nuclear reactor is controlled
   2. No chain reaction takes placed in atomic bomb while it takes place in nuclear reactor
   3. The chain reaction in nuclear reactor is not controlled
   4. No chain reaction takes place in nuclear reaction while in the atomic bomb there is a chain reaction