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Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 1 (60 MCQs)

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1. Electromagnetic waves are a type of a
2. What is the significance of the visible spectrum in human vision?
3. What fact about the Sun explains why people get skin cancer?
4. Select the correct order of waves on the EM Spectrum from low to high energy
5. Objects that emit their light, like the sun, produce ..... waves.
6. There are two types of genetic mutation, germline or somatic. Somatic mutation is caused by factors such as radiation.
7. Electromagnetic waves do not require a medium to travel.
8. Which of the following EM waves has the shortest wavelength?
9. Which of the following is TRUE about the frequency and energy in electromagnetic waves?
10. Electromagnetic waves are transverse in nature is evident by
11. Both X-rays and gamma rays have higher frequencies than ultraviolet rays.
12. Radio waves must be turned into ..... by a radio before you can hear them.
13. Which of the following electromagnetic waves has the longest wavelength?
14. Are used in an airport scanner
15. Imagine Charlotte, Jackson, and Maya are superheroes who can see different types of electromagnetic waves. Charlotte can see radio waves, Jackson can see microwaves, and Maya can see x-rays. Which superhero can see electromagnetic waves that have shorter wavelengths and higher frequencies than radio waves?
16. What electromagnetic wave utilized by plants to make sugar?
17. Name the type of wave in which the medium particles vibrate in a direction perpendicular to the direction of wave motion.
18. A transverse wave that involves the transfer of electric and magnetic energy.
19. What happens to the energy of a photon as the frequency of the wave increases?
20. In microwave ovens, a vibrating electric field causes water molecules to rotate billions of times per second causing friction, creating TE which heats the food.
21. Night vision goggles used in military uses thermal imaging technology to capture ..... radiation. This allows them to see in the dark.
22. Which scientist proved light behaves like a particle?
23. How are we able to perceive an object as being the color black?
24. Gamma-ray bursters are objects in the universe that emit pulses ofgamma rays with high energies. The frequency of the most energeticbursts has been measured at around 3.0 x 10$^{21}$ Hz. What is the wavelengthof these gamma rays? c= 3.00 x 10$^{8}$ m/s. $\lambda=\frac{c}{f}$
25. Which of the following best describes infrared light?
26. The lowest part of the wave is?
27. Massless energy-containing particle that electromagnetic wave sometimes behave like; the frequency of the electromagnetic wave increases with the energy of the particle
28. An electric signal with only two possible values:ON and OFF
29. ..... waves can help sterilize medical equipment by killing bacteria.
30. In a wave machine, a wave would pass slowest through which one?
31. Within a vacuum, the property common to all electromagnetic waves is their .....
32. How would a wave in a wave machine change going from skewers with spice drops to skewers with orange slices?
33. Transverse waves created by electrical and magnetic waves moving in right angles to each other are called .....
34. Light does not need matter to travel.
35. Electromagnetic waves exhibit properties of waves and particles.
36. As the wavelength decreases, the frequency increases.
37. Process of adding a signal to a carrier wave by altering the carrier wave's amplitude, frequency, or other property
38. A ship anchored at sea is rocked by waves that have crests 14m apart. the waves travel at 7.0m/s. How often do the wave crests reach the ship?What is this problem asking you to solve for?
39. What type of wave should be used to transfer electric and magnetic energy through the vacuum of space?
40. True or false:as you move along the spectrum, left to right, the wavelengths decrease in size (get smaller)
41. When red light is compared with violet light
42. The waves with the longest wavelengths in the electromagnetic spectrum
43. What unit is used to measure frequency?
44. Which one does not belong?
45. High-frequency waves have a lot of energy and also have more potentially harmful.
46. Which property means can't see through?
47. Frequency tells you how fast the wave is moving
48. The optical tweezer utilizes ..... property of EM waves.
49. Which of the following is an acoustic waves .....
50. Which of the following devices is not an OPTICAL device
51. Electromagnetic waves are classified using what measurement?
52. Which type of electromagnetic wave can be seen with the unaided eye?
53. What type of wave is a water wave?
54. The amount of waves that go by every second.
55. What happens when a mechanical wave travels through a medium?
56. Why does a straw look broken when you put it in a cup of water?
57. Heat radiations are called
58. Electromagnetic waves sensed by the skin as heat, and used in TV remote controls are known as .....
59. Electromagnetic wave is made up of vibrating electric and
60. Which type of electromagnetic wave is used in microwave ovens to heat food?
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