Heat MCQs

## Which among the following thermometers is preferred for measuring temperature around 1250° C?

Which among the following thermometers is preferred for measuring temperature around 1250° C?

## Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

## If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be:

If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be:

## The best and the poorest conductors of heat are respectively

The best and the poorest conductors of heat are respectively

## In a pressure cooker cooking is faster because the increase in vapour pressure

In a pressure cooker cooking is faster because the increase in vapour pressure

## Thermometer A and B have ice points marked at 15° and 25° and steam points at 75° and 125° respectively. When thermometer A measures the temperature of a bath as 60° the reading of B for the same bath is

Thermometer A and B have ice points marked at 15° and 25° and steam points at 75° and 125° respectively. When thermometer A measures the temperature of a bath as 60° the reading of B for the same bath is

## Which one among the following waves are called waves of heat energy?

Which one among the following waves are called waves of heat energy?

## A glass of water does not turn into ice as it reaches 0° C. It is because water does not solidify at 0° C

A glass of water does not turn into ice as it reaches 0° C. It is because water does not solidify at 0° C

## A hot object loses heat to its surroundings in the form of heat radiation. The rate of loss of heat depends on the

A hot object loses heat to its surroundings in the form of heat radiation. The rate of loss of heat depends on the

## Body A of mass 2 kg and another body B of mass 4 kg and of same material are kept in the same sunshine for some interval of time. If the rise in temperature is equal for both the bodies, then which one among the following in this regard is correct?

250. Body A of mass 2 kg and another body B of mass 4 kg and of same material are kept in the same sunshine for some interval of time. If the rise in temperature is equal for both the bodies, then which one among the following in this regard is correct?

## Which one among the following statements about thermal conductivity is correct?

Which one among the following statements about thermal conductivity is correct?