The theory of Expanding Universe was first propounded by _____.

1. 1. Hubble
   2. Newton
   3. Einstein
   4. Galileo

The other name of Vitamin C is _____.

1. 1. Formic acid
   2. Ascorbic acid
   3. Acetic acid
   4. Riboflavin

For being able to see three-dimensional pictures we have to use _____.

1. 1. An epidiascope
   2. A binocular
   3. A camera
   4. A stereoscope

A satellite moving round the earth with a uniform speed has _____.

1. 1. An accelerated motion
   2. No acceleration at all
   3. Uniform acceleration
   4. Uneven acceleration

The absorption of ink by blotting paper involves _____.

1. 1. Capillary action phenomenon
   2. Viscosity of ink
   3. Diffusion of ink through the blotting
   4. Siphon action

Materials for rain-proof coats and tents owe their water proof properties to _____.

1. 1. Specific gravity
   2. Viscosity
   3. Elasticity
   4. Surface tension

Water has maximum density at _____.

1. 1. 0°C
   2. 4°K
   3. 6.2°C
   4. 4°C

Detergents dissolved in water help in cleaning clothes by _____.

1. 1. Increasing the temperature of water
   2. Reducing the surface tension of water
   3. Reacting chemically with dirt
   4. Dissolving dirt

In order to prevent the corrosion of iron pipes, they are often coated with a layer of zinc. This process is termed as _____.

1. 1. Galvanisation
   2. Electroplating
   3. Annealing
   4. Vulcanisation

Scalding with steam is more severe than scalding by boiling water because _____.

1. 1. Steam can penetrate the skin
   2. Steam contains more energy than boiling water
   3. Steam is at a higher temperature
   4. Steam is at a higher pressure