Properties of Wave Motion Multiple Choice Questions (MCQ) PDF - 12

MCQ 56: Time taken to complete a wave is termed as

1. span
2. period
3. life
4. duration

MCQ 57: Air trapped inside a single-piston-cylinder exerts a pressure of 760 mmHg. If its volume is increased by 30% at a constant temperature, the pressure exerted would be equal to

1. 533 mmHg
2. 544 mmHg
3. 584 mmHg
4. 633 mmHg

MCQ 58: If two forces of 20 N towards north and 12 N towards south are acting on an object. The resultant force will be

1. 32 N toward north
2. 20 N towards north
3. 32 N towards south
4. 8 N towards north

MCQ 59: Mass is a measure of

1. weight
2. inertia
3. friction
4. matter

MCQ 60: A car uses total energy of 2500 J and the output is 750 J. The efficiency of the car is

1. 50%
2. 30%
3. 25%
4. 80%