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1. He theorized that the changing magnetic field will produce electric field.
a. Faraday b. Hertz c. Maxwell
d. Oertsed
2. Electromagnetic waves can travel through a vacuum.
What is the speed of electromagnetic wave in a vacuum?
a. 3 x 10 m/s b. 3 x 10 8 m/s ? c. 3 x 10 9 m/s d. a. 3 x 10 9 m/s?
3. Which property spells the difference between radio wave and microwave radiation?
a. amplitude b. color c. speed in vacuum
4. Which of the two waves lie at the beginning and end of the electromagnetic spectrum?
d. wavelength
a. gamma ray and x ray b. microwave and ultraviolet ray c. radio wave and gamma ray
d. radio wave and microwave
5. These are the waves that are created as a result of vibrations between an
electric field and magnetic field.
a. electromagnetic spectrum b. electromagnetic wave
b. electromagnetic wave c. microwave d. radio wave
6. Electromagnetic waves are produced by
a. any disturbance b. currents c. vibrating charge d. voltage source
7. What is the frequency range of ultraviolet radiation?
a. 3.5 x 10'- 3. x 10 Hz b. 3.5 x 10 -- 3. x 10 Hz
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c. 7.5 x 10 - 3 x 10 Hz d. 7.5 x 10 16 - 3 x 10 19 Hz
8. Visible light is the only EM wave that can be seen by our naked eye.
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What is the color of light if it has a frequency of 4.5 x10 Hz?
b.green
d. yellow
9. Which of the following is arranged from shortest to longest wavelength?
a. gammaray, radio wave, infrared
b. microwave, x ray and gamma ray
c. ultraviolet ray, visible light, radio wave
d. x-ray, gamma ray, ultraviolet
10. Which type of EM wave has wavelength similar to the size of a 1 Peso con?
b. microwave c. ultraviolet d. visible light
a. infrared
11. Which electromagnetic wave can travel the least distance because it has a wavelength
range of less than 1x10
metes but has highst energy?
d. x-ray
a. gamma ray b. microwave c. radiowave
12. In the electromagnetic spectrum, which has the longest wavelength?
d. visible light
b. radio wave
c. ultraviolet
a. gamma ray
13. A visible light has a frequency of 6.3 x 10 14. What is the color of light?
b. green
c. red
d. yellow
14. Which of the following EM waves has the HIGHEST fequency level?
d. X-ray
b. microwave c. ultraviolet
15. What happens to the wavelength of electromagnetic wave if its frequency increases?
a. blue
c. red
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a. blue
a. Infrared​