Welcome to your General Waves - Types and Properties(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. A transverse wave and a longitudinal wave travelling in the same direction in a medium differ essentially in their direction of vibration of the particles of the medium amplitude period of vibration of the particles of the medium frequency 2. A boat at anchor is rocked by waves whose crests are 100 m apart and whose velocity is 25 m/s. At what interval does the wave crest reach the boat? 75 s 4 s 0.24 s 2500 s 3. The distance between two successive crests of a water wave is 1 m. If a particle on the surface of the water makes two complete vertical oscillations in 1 second, calculate the speed of the wave 0.5 m/s 1.0 m/s 2.0 m/s 3.0 m/s 4. Transverse waves can be formed in fluids. True False 5. What is the most fundamental property of wave? pressure frequency temperatue wavelength 6. Which of the following is not a type of electromagnetic wave? Gamma radiation Red light Sound Radio waves 7. All waves except ______ waves must travel through a medium. Light Sound Water Compressional 8. In the animation shown, at the point where the two waves cross, which property changes? Index of refraction Amplitude Speed Frequency 9. Two waves are propagating with the same amplitude and nearly same frequency in opposite direction, they result in ___ Stationary wave Wave packet Resonance Beats 10. Two waves of wavelength 99cm and 100cm both travelling with velocity 396m/s are made to interfere. The number of beats produced by them per second is? 4 1 2 8 11. In which medium sound travels faster? Water vapour Liquid Solid Gas 12. In the animation, what type of wave is shown? Refracted Rarefied Transverse Longitudinal 13. What kind of wave is formed in organ pipes? Longitudinal stationary wave Electromagnetic waves Mechanical waves Transverse stationary waves 14. For an aluminium the modulus of rigidity is 2.1×1010 N/m2 and density is 2.7×103 kg/m3. Find the speed of transverse waves in the medium. 24.1×10³ m/s 2.79×10³ m/s 27.9×10³ m/s 25.14×10³ m/s 15. If a particle travelling with a speed of 0.9 of the speed of sound and is emitting radiations of frequency if 1kHz and moving towards the observer, what is the apparent frequency? 10 kHz 0.4 kHz 1.1 kHz 0.8 kHz 16. Sound travels through a gas under which of the following condition? Non-isothermal condition Isothermal condition Transverse condition Adiabatic condition 17. What are the essential properties a medium must possess for the propagation of mechanical waves Minimum friction Stable pressure Maximum friction Constant temperature 18. Which of the following is true of light and sound waves? their velocities in air are equal they are both transverse waves they both transmit energy they both need a material medium for propagation 19. Mechanical waves are called elastic waves. False True 20. The material that a wave travels through is called the Amplitude Compression Rarefaction Medium 21. What are the essential properties a medium must possess for the propagation of mechanical waves? Maximum friction Minimum friction Stable pressure Constant temperature 22. Two trains, each moving with a velocity of 30m/s, cross each other. One of the trains gives a whistle whose frequency is 600Hz. If the speed of sound is 330m/s, the apparent frequency for passengers sitting in the other train before crossing would be __________ 600Hz 630Hz 720Hz 930Hz 23. Any line or section taken through an advancing wave in which all particles are in the same phase is called the wave front wave amplitude wavelength wave crest 24. An organ pipe, open at both ends produce 5 beats per second when vibrated with a source of frequency 200Hz. The second harmonic of the same pipe produces 10 beats per second with a source of frequency 420 Hz. The frequency of source is? 210Hz 190Hz 205Hz 195Hz 25. The period of vibration of a wave of wavelength 30 m moving at a speed of 300 m/s is 10 s 330 s 270 s 0.1 s 1 out of 25 Time is Up! Time's up
