Heat Capacity: Physics Multiple Choice Questions (MCQs) PDF Download - 176

In the kitchen, the cook heats up the milk from 20 °C to 30 °C with the thermal energy of 2000 J. The heat capacity of the milk is

1. 100 J K^-1
2. 200 J K^-1
3. −100 J K^-1
4. −200 J K^-1

A scientist tries to find the temperature with a laboratory thermometer which is unmarked, its values are l₁₀₀ 58 cm and l₀ is 8 cm. If the l_θ is 48 cm, the temperature of the thermometer would be

1. 20 °C
2. 40 °C
3. 60 °C
4. 80 °C

Energy in relevance to time is related to

1. Efficiency
2. Work
3. Power
4. Force

True statement about reflection is

1. Incident ray, reflective ray and the normal lies at a different point
2. angle of incidence is not equal to angle of reflection
3. the point on which the ray touches the mirror is called critical point
4. the angle of reflection is equal to the angle of incidence

Ice point is equal to 273 K, which is equal to

1. −273 °C
2. 273 °C
3. 0 °C
4. 100 °C