Gas Pressure MCQ with Answers PDF Download – Test 116

A manometer containing mercury of density 1.36 × 10³ kg m^-3 connected to a gas supply. What is the pressure of gas supply in cm Hg?

1. 54 cm Hg
2. 39 cm Hg
3. 81 cm Hg
4. 70 cm Hg

Light ray reflected from the reflecting surface is called

1. reflected ray
2. refracted ray
3. normal
4. incident ray

To illustrate uniform and non-uniform acceleration for motions in a straight line, we can use

1. velocity-distance graphs
2. displacement-time graphs
3. speed-time graphs
4. speed-displacement graphs

The thermal energy required to change the substance from liquid to vapor state, or vice versa, without any temperature change is known as

1. specific latent heat of fusion
2. latent heat of vaporization
3. latent heat of fusion of a solid
4. specific latent heat of vaporization

When a pure liquid is heated and it changes to vapor at a fixed temperature, the state is called

1. boiling
2. condensation
3. solidification
4. fusion