Heat Capacity: Physics MCQ (Multiple Choice Questions) PDF - 14

MCQ 66: A milkman boils the milk before distributing it in the pots. He raises the temperature of the milk from 10 °C to 130 °C with the thermal energy of 120000 J. If the mass of the milk is 25 kg, the specific heat capacity of the milk would be

1. 40 J kg^-1 °C^-1
2. 80 J kg^-1 °C^-1
3. 120 J kg^-1 °C^-1
4. 160 J kg^-1 °C^-1

MCQ 67: Resistance of a metal wire at ice point is 800 Ω and 810 Ω at steam point, and resistance of wire is 801 Ω the room temperature would be

1. 10 °C
2. 20 °C
3. 30 °C
4. 40 °C

MCQ 68: Temperature of a gas is increased, its kinetic energy would

1. increase
2. decrease
3. remain same
4. increase and decrease both

MCQ 69: Gravitational field strength of moon is

1. 1.6 N ⁄ g
2. 1 ⁄ 6 × Gravitational field strength on earth
3. Zero
4. None of the above

MCQ 70: Magnitude of the coefficient of viscosity is given by

1. frictional force ⁄ (area × velocity gradient)
2. (frictional force × velocity gradient) ⁄ area
3. (frictional force × area) ⁄ velocity gradient
4. None of the above