Mica is a good conductor of heat but bad conductor of electricity.

Correct Option: A

Mica is a good conductor of heat but bad conductor of electricity.

When a running car stops suddenly, the passengers tend to lean forward due to inertia of motion. Inertia is that property of a body due to which it resists a change in its state of rest or of uniform motion.

Correct Option: C

When a running car stops suddenly, the passengers tend to lean forward due to inertia of motion. Inertia is that property of a body due to which it resists a change in its state of rest or of uniform motion.

The relative humidity of air at a given temperature is the ratio of mass of water vapour actually present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature, miltiplied by 100. Absolute Humidity refers to the amount of water vapour present in unit volume of air, expressed in grams per cubic metre.

Correct Option: C

The relative humidity of air at a given temperature is the ratio of mass of water vapour actually present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature, miltiplied by 100. Absolute Humidity refers to the amount of water vapour present in unit volume of air, expressed in grams per cubic metre.

Least audible sound for most of the human ear is 2× 10–5 pascal. The generally accepted standard range of audible frequencies is 20 to 20,000 Hz.

Correct Option: B

Least audible sound for most of the human ear is 2× 10–5 pascal. The generally accepted standard range of audible frequencies is 20 to 20,000 Hz.

A metal to be used as a cooking material should have less thermal conductivity.

Correct Option: C

A metal to be used as a cooking material should have less thermal conductivity.