Heat Capacity: Physics MCQ (Multiple Choice Questions) PDF - 30

MCQ 146: In an experiment, 250 g of water uses 5000 J of thermal energy to raise its temperature from 50 °C to 75 °C, the heat capacity of the water is

1. 200 J K^-1
2. 400 J K^-1
3. −100 J K^-1
4. −200 J K^-1

MCQ 147: Sound waves have

1. Amplitude only
2. Frequency and wavelength only
3. Amplitude, frequency and wavelength
4. Amplitude and wavelength only

MCQ 148: A girl of mass 40 kg wears heels with an area of 1 cm² in contact with the ground, the pressure on the ground is (take earth's gravitational field strength)

1. 4 × 10^-5
2. 4 × 10⁴
3. 4 × 10⁵
4. 40 × 10⁵

MCQ 149: Thermocouple thermometer uses

1. Voltmeter
2. Ammeter
3. Galvanometer
4. Manometer

MCQ 150: An unmarked mercury thermometer has l₁₀₀ 25 cm and l₀ is 5 cm, if the l_θ is 14 cm, the temperature of the thermometer would be

1. 45 °C
2. 50 °C
3. 55 °C
4. 40 °C