Sound Waves - Quiz (Maxumum Marks =25) 1. Sound is produced by: A. Stationary objects B. Vibrating objects C. Non-moving objects D. Only luminous objects 2. The material through which sound travels is called: A. Source B. Medium C. Vacuum D. Frequency 3. Sound cannot travel through: A. Air B. Vacuum C. Water D. Steel 4. Sound waves in air are: A. Transverse electromagnetic waves B. Transverse mechanical waves C. Longitudinal mechanical waves D. Electromagnetic waves 5. A compression is a region of: A. Low density and low pressure B. High density and high pressure C. Zero density D. No particles 6. A rarefaction is a region of: A. High density and high pressure B. Low density and low pressure C. Maximum compression D. No vibration 7. During sound propagation, particles of the medium: A. Travel from source to listener B. Vibrate about their mean positions C. Stop moving completely D. Move only upward 8. Wavelength is the distance between two consecutive: A. Random points B. Crests or troughs C. Sources D. Mediums 9. The symbol of wavelength is: A. \(T\) B. \(\nu\) C. \(\lambda\) D. \(v\) 10. The SI unit of frequency is: A. metre B. second C. hertz D. metre per second 11. The relation between frequency and time period is: A. \(\nu=T\) B. \(\nu=\frac{1}{T}\) C. \(\nu=T^2\) D. \(\nu=\lambda T\) 12. The speed of sound is given by: A. \(v=\frac{\nu}{\lambda}\) B. \(v=\lambda\nu\) C. \(v=\lambda+\nu\) D. \(v=\frac{T}{\lambda}\) 13. Sound travels fastest in: A. Gases B. Liquids C. Solids D. Vacuum 14. The correct order of speed of sound is: A. Gases > Liquids > Solids B. Liquids > Gases > Solids C. Solids > Liquids > Gases D. Vacuum > Gases > Solids 15. The approximate speed of sound in air is: A. \(3\times10^8\,m\,s^{-1}\) B. \(340\,m\,s^{-1}\) C. \(1500\,m\,s^{-1}\) D. \(5000\,m\,s^{-1}\) 16. The approximate speed of sound in water is: A. \(340\,m\,s^{-1}\) B. \(1500\,m\,s^{-1}\) C. \(5000\,m\,s^{-1}\) D. \(0\,m\,s^{-1}\) 17. The amplitude of a sound wave is related to: A. Maximum change in density from average density B. Colour of the sound C. Speed of light D. Shape of the source only 18. A sound wave with larger amplitude carries: A. Less energy B. More energy C. No energy D. Only light energy 19. Pitch of sound mainly depends on: A. Frequency B. Colour C. Temperature only D. Shape of ear only 20. A high-frequency sound has: A. Low pitch B. High pitch C. No pitch D. No vibration 21. The audible range of sound for a normal human ear is: A. \(0\,Hz\) to \(20\,Hz\) B. \(20\,Hz\) to \(20,000\,Hz\) C. Above \(20,000\,Hz\) only D. Below \(20\,Hz\) only 22. Sounds with frequency below \(20\,Hz\) are called: A. Ultrasonic sounds B. Infrasonic sounds C. Audible sounds D. Musical notes 23. Sounds with frequency above \(20,000\,Hz\) are called: A. Infrasonic sounds B. Ultrasonic sounds C. Low-pitch sounds D. Silent sounds 24. Echo is produced due to: A. Absorption of sound B. Reflection of sound C. Refraction of light D. Absence of medium 25. SONAR uses: A. Sound waves to detect underwater objects B. Only visible light C. Magnetic force only D. Heat waves only Submit Quiz Reset Quiz
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