Total Internal Reflection Notes Questions with Answers PDF Download - 159

Thermal energy always flows from

1. a region of higher temperature to a region of lower temperature
2. a region of lower temperature to a region of higher temperature
3. a region of high concentration to low concentration
4. a region of low concentration to high concentration

Feature of laboratory thermometer that makes it sensitive is

1. The thin-walled glass bulb
2. The small bulb containing a small amount of liquid
3. The fine as well as uniform bore of the capillary tube
4. The relatively small size of the thermometer

The amount of thermal energy required to change a solid to liquid state and vice versa without any change if temperature is termed as

1. Latent Heat of Fusion
2. Latent Heat of Vaporization
3. Heat Capacity
4. Specific Heat Capacity

In solid, particles are

1. closely packed
2. free to move
3. irregularly packed
4. far apart

Use of friction in breaking pads of cars is a

1. positive effect of friction
2. negative effect of friction
3. neutral effect
4. combined effect (positive and negative both)