McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .
| 1. |
Sound is produced by |
| A. | Non-Vibrating objects only |
| B. | Vibrating and non- vibrating objects |
| C. | Vibration has no relation to sound |
| D. | Vibrating objects only |
| Answer» D. Vibrating objects only | |
| 2. |
Sound cannot travel through |
| A. | vacuum |
| B. | air |
| C. | water |
| D. | solids |
| Answer» A. vacuum | |
| 3. |
Vibration is also known as |
| A. | Vibratory motion |
| B. | Translatory motion |
| C. | Oscillatory motion |
| D. | None of these |
| Answer» C. Oscillatory motion | |
| 4. |
Frequency is expressed in |
| A. | Kilometer |
| B. | Hertz |
| C. | gram |
| D. | Degree centigrade |
| Answer» B. Hertz | |
| 5. |
The number of oscillations per second is called |
| A. | Amplitude of oscillation |
| B. | Pitch of oscillation |
| C. | Frequency of oscillation |
| D. | None of the bove |
| Answer» C. Frequency of oscillation | |
| 6. |
Above _____ dB the sound becomes physically painful |
| A. | 60 |
| B. | 40 |
| C. | 120 |
| D. | 80 |
| Answer» D. 80 | |
| 7. |
When the amplitude of vibration is large, sound produced is |
| A. | No sound |
| B. | feeble |
| C. | loud |
| D. | No relation between amplitude and sound |
| Answer» C. loud | |
| 8. |
Human can hear sound in the range of |
| A. | 200-2000 Hz |
| B. | 20-20,000 Hz |
| C. | 2-20000 Hz |
| D. | 2000-200000 Hz |
| Answer» B. 20-20,000 Hz | |
| 9. |
An ultrasound equipment works at frequency |
| A. | Higher than 20,000 Hz |
| B. | Higher than 10,000 Hz |
| C. | Lower than 20,000 Hz |
| D. | Lower than 10,000 Hz |
| Answer» A. Higher than 20,000 Hz | |
| 10. |
Voice of man is heavy compared to a woman because |
| A. | Female vocal cord is longer |
| B. | Male vocal cord is shorter |
| C. | Male vocal cord is longer |
| D. | The concept is not related |
| Answer» C. Male vocal cord is longer | |
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