Welcome to your Superposition of Waves(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. Two transverse waves overlap. Crests overlap with crests. Troughs overlap with troughs. The waves are In-synchronicity Out-of-phase In-phase Out-of-synchronicity 2. The diagram shows a string with with ends P and T fixed. The string is made to vibrate transversely so that P, R and T are the only points on the string which are nodesThe vibrations of the two points Q and S, shown on the string, have different amplitudes and are in phase the same amplitude and are in phase the same amplitude and differ in phase by 180° the same amplitude and differ in phase by 90° 3. Splitting of white light in to constituent colors is called refraction reflection diffraction dispersion 4. If two sound waves having a phase difference of 60°, then they will have a path difference of _____ 3ʎ ʎ/6 ʎ ʎ/3 5. The diagram shows a standing wave on a string. The standing wave has three nodes N1, N2 and N3.Which statement is correct? Points equidistant from N2 vibrate with the same frequency and in phase. Points equidistant from N2 vibrate with the same frequency and the same amplitude. All points on the string vibrate with the same amplitude. All points on the string vibrate in phase. 6. The mercury spectrum contains two intense yellow lines with wavelengths of 577.0 nm and 579.1 nm respectively. Light from a mercury lamp is incident normally on a diffraction grating ruled with 4300 lines per centimetre. To distinguish the two yellow lines clearly, it is desirable that there should be an angular separation of at least 0.30° between the two lines. Which order of diffraction can be used? 4 th order 5 th order 3 rd order 2 nd order 7. A speaker producing sound of frequency 2500 Hz is placed at the open end of a closed pipe containing a gas.As the piston is moved along the pipe, a series of 6 loud sounds was heard. The first loud sound was observed when the piston was 4.0 cm away from the open end, and the sixth loud sound was observed when the piston was 37 cm away from the open end. What is the speed of sound in the gas? 370 m/s 400 m/s 270 m/s 330 m/s 8. Visible of light has a wavelength of 3 e8 m 6 e3 m 5 e-7 m 4 e4 m 9. For listening radio in cars, external radio aerials are used because radio waves require a medium to propagate radio waves have shorter wavelength radio waves have longer wavelength radio waves cannot pass through window 10. Constructive interference happens when two waves are zero amplitude in phase out of phase in front 11. Wavelength of an incident light when it is incident normally on a diffraction grating having 3000 lines per centimeter angular separation is 10° is 650 nm 600 nm 580 nm 500 nm 12. From double slit experiment, the quantities to be measured are slit-to-screen distance fringe separation slit separation all of the above 13. If equation of a sound wave isy=0.0015sin(62.8x+314t)Then its wavelength will be ____ 2unit 0.2units 0.3unit 0.1unit 14. Fringes are referred to as maxima nodes normal points minima 15. Which of the following is always true for a stationary wave? All particles vibrate in simple harmonic motion with the same frequency as the wave The particles in the wave oscillate perpendicularly to the direction of wave travel All particles have the same amplitude. No energy is transferred from one end of the wave to the other. 16. A loudspeaker at position S emits sound of a single frequency. The sound travels to Leo who is at position L, both through a straight path and after reflection from a wall as shown.As Leo walks directly towards the wall, the sound alternates between loud and soft. Which of the following changes would result in an increase in the distance between loud and soft sounds? Moving the loudspeaker closer to the wall. Increasing the frequency emitted by the loudspeaker. Increasing the loudness of the sound emitted by the loudspeaker. Moving the loudspeaker towards L. 17. Two transverse waves overlap. Crests overlap with troughs. Troughs overlap with crests. The waves are In-phase Out-of-synchronicity In-synchronicity Out-of-phase 18. A double-slit interference of green-coloured light was set up as shown and interference fringes are formed on the screen.Which change would increase the distance between adjacent fringes? Reduce the width of each slit. Move the double-slit closer to the screen. Use a double-slit where the slits are further apart. Use orange-coloured light. 19. Principle of superposition can be applied to radio waves all of the above sound waves EM waves 20. For a wave propagating in a medium, identify the property that is independent of the others. Frequency Wavelengths All these depend on each other Velocity 21. If two waves are in phase and have the same amplitude then resultant wave has twice of amplitude of single wave thrice of amplitude of single wave half of amplitude of single wave same amplitude as single wave 22. A wave is diffracted as it passes through an opening in a barrier.The amount of diffraction that the wave undergoes depends on both the wavelength and speed of the incident wave. amplitude and frequency of the incident wave. amplitude of the incident wave and the size of the opening wavelength of the incident wave and the size of the opening. 23. Interference pattern of light and dark bands on screen is called light spectrum graphical pattern line spectrum fringes 24. For destructive interference, the path difference is even number of half wavelengths whole number of wavelengths odd number of half wavelengths even whole number of wavelength 25. The plane wave is described by the equationy=3cos(x/4-10t-π/2),Where c is in meters and t in seconds. The maximum velocity of the particles of the medium due to this is? 40m/s 30m/s 3/4 m/s 3π/2 m/s 1 out of 25 Time is Up! Time's up