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Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 28 (60 MCQs)

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1. Light travels fastest through
2. If the frequency of a sound wave is decreased, what change would happen to the sound?
3. The frequency of a wave increases when the speed remains the same. What happens to the distance between two consecutive crests?
4. What do we call the part of a compressional wave that is when the waves are squeezed together?
5. How is the amplitude of a wave defined?
6. The energy of visible light is transported by electromagnetic waves, which are ..... waves.
7. For soundwaves, the amplitude represents the
8. Evaluate the claim: "Waves travel faster in a vacuum than in air." Which mathematical evidence supports or refutes this claim, considering frequency, wavelength, and speed?
9. In the Electromagnetic Spectrum, which color of light has the longest wavelength?
10. What is meant by the term wave front?
11. A dolphin sends out a call to another dolphin at a frequency of 130 Hz. The speed of sound in water is 1400 m/s. What is the wavelength of the wave?
12. When Blue and Green light are shone in one place, the resulting colour is .....
13. What type of wave can travel without a medium? It can travel through a vacuum or empty space.
14. The rest position of a mass on a spring is called its
15. Transverse waves vibrate parallel to the medium through which they travel.
16. What is wave diffraction?
17. Sound travels at 1400m/s in water. If a ship sends a sonar signal to map the bottom of the ocean and it returns after 2 seconds, how deep is the ocean?
18. What is the phenomenon called when a wave bends around the edge of an obstacle?
19. What creates the Doppler Effect?
20. The line in a ray diagram that shows the direction of the barrier and is drawn at a right angle, or perpendicular, or to the barrier
21. Which is an example of the lowest wavelength?
22. Which of the following is a measure of the maximum displacement of a wave from its equilibrium position?
23. Wave motion:Earthquakes
24. P waves are earthquake waves that are .....
25. Frequency is how many waves pass a point in 1 second. If 100 waves pass a given point in 4 seconds, what is the wave's frequency?
26. Occurs when an object vibrates at or near a certain frequency causes a second object to vibrate
27. The ..... is the highest point on a transverse wave, and the ..... is the lowest point.
28. What causes the color of an object?
29. Select the correct order of waves on the EMS from low to high energy
30. A tuning fork creates a sound wave with a frequency of 250 Hz. The wavelength of the wave is 1.36 m. What is the speed of sound?
31. Which of these words describes the point of maximum displacement from the equilibrium position of a wave?
32. A microwave has a frequency of 300MHz. What is the wavelength of these waves? (Speed = 300 000 000 m/s)
33. How many wavelengths are there on a string vibrating at its fundamental frequency?
34. A higher frequency sound has a
35. The higher the pitch, the ..... the wavelength and the ..... the frequency.
36. What do we call the vibrations that transfer or move energy from place to place?
37. What happens when the high points of two waves meet?
38. Find the first three harmonics of a string of linear mass density 2.00 g/m and length 0.600 m when the tension in it is 50.0 N.
39. Which one of these is not a type of wave
40. Sound is an example of a
41. Which EM wave has wavelengths roughly around 1 mm to 1 m?
42. The speed of the wave is called its
43. A radio gives a strong signal when the antenna is vertical and a weak signal when horizontal. What property of radio waves is being demonstrated?
44. Which part of the electromagnetic spectrum is described by the following characteristics:it cannot be seen by the human eye, it is used to disinfect the heads of toothbrushes and lab goggles, and has a wavelength larger than X-rays but smaller than visible light.
45. A phenomenon that occurs when the frequency of forced vibrations on an object matches the object's natural frequency
46. Sound waves are classified as:
47. A wave source produces 3000 crests every minute. The wave has a speed of 300m/s. What is the wavelength of the wave?
48. Which type of wave has areas of compression and rarefaction?
49. Which of the following lists of electromagnetic waves are in order of increasing energy?
50. What type of wave is known as a compressional or longitudinal wave, which compresses and expands the ground?
51. When we look around the classroom, which object reflects most of the light?
52. What principle is responsible for light spreading as it passes through a narrow slit?
53. Define "medium" in the context of wave propagation.
54. What causes a wave?
55. When looked at in red light, a blue book will look .....
56. Resonance is produced when an oscillating object
57. The speed of light in a piece of plastic is $2.00\times10^8$
58. Examples of Lomgitudianal waves
59. What equipment is needed to investigate the refraction of light using rectangular blocks, semi-circular blocks, and triangular prisms?
60. As wavelength decreases in the electromagnetic spectrum the frequency .....
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