CH-8 Waves Leave a Comment / By abdulslambsn@gmail.com / October 6, 2025 Welcome To Your Quiz "CH-8 Waves" Click on "Start Quiz" To Continue... 1. The particle of the medium vibrates in longitudinal waves: Along the direction of wave motion Do not vibrate at all Opposite the direction of wave motion Perpendicular to the direction of wave motion None 2. The waves associated with particles in motion are called: Light waves Electronic waves Matter waves None 3. A wave which transfer energy in moving from the source of disturbance is called: Travelling waves Matter waves Water waves Radio waves None 4. The distance between two successive crests or troughs is called: Area Displacement Amplitude Wavelength None 5. All parts of the wave pattern move with: Same speed Different speed Double speed None of above None 6. Waves in which particles of the medium vibrate parallel to the direction of propagation are called: Transverse Waves Stationary waves Longitudinal waves Complex waves None 7. Passage of waves from one medium into another is called: Reflection Refraction Transmission Diffraction None 8. If 30 waves per second pass through a medium at a speed of 30 m/s wavelength of these waves is: 30 m 15 m 1 m 280 m None 9. The point at which the displacement of the wave is zero called: Node Trough Anti- nod Crest None 10. when two similar ways moving along the same line in opposite direction are superposed, they give rise to: Stationary waves Longitudinal waves Compressed waves Travelling waves None 11. The stationary waves consists of: Crest and troughs Nodes and anti Nodes reflection and refraction None of these None 12. When stationary waves are set up in a cord which is fixed at both ends, the points which always remain at rest is called: Nodes Anti-nodes Both [a] and ]b] None of these None 13. The speed of sound waves is independent of: Pressure source of sound Medium Temperature None 14. Newton's formula for the speed of sound is corrected by: Graham Bell Laplace Huygen Weber-fechner None 15. The velocity of sound in air at 0 C is: 332 m/s 300 m/s 322 m/s 280 m/s None 16. Velocity of sound in vacuum is: Zero 332 m/s 280 m/s 325 m/s None 17. The speed of sound waves in a medium depends upon: Density of Medium Amplitude of the particle Elasticity of medium Both density and elasticity of medium None 18. The velocity of sound is greatest in: Steel Air Iron Water None 19. The speed of sound is greater in solids than in gasses due to their high: Temperature Pressure Density Elasticity None 20. Two ways of different frequency and travelling in the same direction is called: Interference Beats Stationary waves Sound waves None 21. Principle of superposition of waves is applied in: Formation of beats Formation of stationary waves Interference of sound waves All of the above None 22. Beds cannot be heard if the difference of frequencies is more than about: 6 4 9 10 None 23. A stretched string with both ends fixed corresponds to: A closed end pipe An open- end organ pipe Both A and B None of these None 24. The pitch of the sound is determined by its: Speed Frequency Direction Number of beats None 25. What is the approximate range of audible frequencies for a young person: 2 Hz to 2000 Hz 20 Hz to 2000 Hz 20 Hz to 20,000 Hz 200 Hz to 2 Hz None 26. Sound frequencies lower than 20 Hz are called: Supersonics Infrasonics Ultrasonics Audible sound waves None 27. Beats are the result of: Interference Diffraction of sound waves Polarization None of the above None 28. Musical sound depends upon; Velocity Frequency Amplitude Periodicity and regularity None 29. The number of beats produced per second is equal to: The difference of frequencies of two tuning forks forks The sum of frequencies of two tuning forks The ratio of the frequencies of two tuning forks None of these None 30. Radar system is the application of: Photoelectric effect Doppler effect Compton effect None of these None 31. When source of sound approaches the listener at rest, the frequency of sound received by him is: Less than the frequency of sound produced by source Hey Cortana Greater than the frequency of sound produced by source Hey Cortana Same as that produced by source Zero None 32. Dog hears sound which ranges: 150 -150000 Hz 100 - 12000 Hz 50 - 70000 Hz 15 - 50000 Hz None 33. Two pipes one is open and other is closed at one end are of same length than the ratio of their fundamental frequencies is: 1:2 2:1 1:1 1:4 None 34. The frequency of waves produced to microwave oven is: 1435 MHz 2450 MHz 1860 MHz 2850 MHz None 35. The minimum length of a closed pipe which can resound with a note of wavelength 1 m is: 0.25 m 0.5 m 0.75 m 1 m None 1 out of 7 Thanks For Taking This Quiz - Please See Your Answers/Results Below After Entering Your Name & Email... Name Email Time's up
