Measuring Atmospheric Pressure Quiz Questions and Answers PDF - 85

MCQ 421: An instrument commonly used for the measurement of atmospheric pressure is known as

1. Manometer
2. Barometer
3. Calorimeter
4. Potentiometer

MCQ 422: Specific latent heat of fusion is equal to

1. latent heat of fusion ⁄ mass of the substance
2. mass of the substance × latent heat of fusion
3. mass of the substance × heat capacity
4. heat capacity ⁄ mass of the substance

MCQ 423: Efficiency of a machine is measured by

1. (Wasted Energy Output ⁄ Energy Input) × 100 %
2. (Energy Input ⁄ Wasted Energy Output) × 100 %
3. (Useful Energy Output ⁄ Energy Input) × 100 %
4. (Energy Input ⁄ Useful Energy Output) × 100 %

MCQ 424: If we increase the wavelength the frequency would

1. increase
2. decrease
3. remain same
4. may increase or decrease

MCQ 425: A bulb weighs 500 N, its mass in grams would be

1. 50 g
2. 5 g
3. 5000 g
4. 500 g