Punjab 10th Class Physics Chapter 2 Sound Mcqs Test Online Punjab 10th Class Physics Chapter 2 Sound Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator 5% Question 1 of 20Physics 1. The speed of sound at 0°C in air is: 1.1000 m/s 2.332 m/s3.500 m/s 4.555 m/s Question 1 of 20Question 2 of 20 2. Sound waves travel faster in: 1.Wood 2.Water 3.Air 4.Cooper Question 2 of 20Question 3 of 20 3. Sound waves cannot passes through: 1.Vacuum 2.Water 3.Air 4.Metgals Question 3 of 20Question 4 of 20 4. By increasing temperature, the speed of sound: 1.Increases 2.Remains constant 3.Decreases 4.Becomes double Question 4 of 20Question 5 of 20 5. How does sound travel from its source to your ear? 1.By changes in air pressure 2.By infrared waves 3.By vibrations in wires or strings 4.By electromagnetic waves Question 5 of 20Question 6 of 20 6. Which form of energy is sound? 1.Electrical 2.Chemical 3.Thermal 4.Mechanical Question 6 of 20Question 7 of 20 7. Loudness of sound decreases by increasing: 1.None of these2.Distance from sounding object 3.Amplitude 4.No of vibrations Question 7 of 20Question 8 of 20 8. The magnitude of the sensation produced on the ear by a sound is known as: 1.Quality 2.Intensity 3.Loudness 4.Pitch Question 8 of 20Question 9 of 20 9. Sound energy per unit area per second is called: 1.Loudness 2.Pitch 3.Intensity 4.Frequency Question 9 of 20Question 10 of 20 10. Sound is a form of energy and it is produced by: 1.Water 2.Vibrating body 3.Air 4.Heating Question 10 of 20Question 11 of 20 11. The loudness of a sound is most closely related to its: 1.Frequency 2.Period 3.Amplitude 4.Wavelength Question 11 of 20Question 12 of 20 12. When the sound waves reach near the ear drum it starts: 1.Sounding 2.Resonating 3.Vibrating 4.Losing Question 12 of 20Question 13 of 20 13. Which is an example of a longitudinal wave? 1.Sound wave 2.Radio wave 3.Water wave4.Light wave Question 13 of 20Question 14 of 20 14. If I = 1 wm⁻², then its corresponding intensity level is: 1.1 dB 2.0 dB 3.60 dB4.120 dB Question 14 of 20Question 15 of 20 15. Ultrasonic was having frequency greater than: 1.10 kHz 2.0.2 kHz 3.20 kHz 4.5 kHzQuestion 15 of 20Question 16 of 20 16. Ultrasounds are used for: 1.Measuring depth of oceans 2.Scaling of teeth 3.Crushing kidney stones 4.All are true Question 16 of 20Question 17 of 20 17. Astronauts in space need to communicate with each other by radio links because: 1.Sound waves travel very fast in space 2.Sound waves travel very slowly in space 3.Sound waves cannot travel in space 4.Sound wave have low frequency in spaceQuestion 17 of 20Question 18 of 20 18. For a normal person, audible frequency range for sound wave lie between: 1.30 Hz and 30 kHz2.10 Hz and 10 kHz 3.25 Hz and 25 kHz 4.20 Hz and 20 kHz Question 18 of 20Question 19 of 20 19. Loudness of sound depends upon: 1.Area of vibrating surface 2.Amplitude 3.All are true 4.Direction of wind Question 19 of 20Question 20 of 20 20. When the frequency of a sound wave is increased, which of the following will decrease? (i) Wavelength (ii) Period (iii) Amplitude 1.i and ii only 2.i only 3.i and iii only 4.iii only Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 10th Class Physics You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.