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10 questions
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  • Q1

    How does a decrease in the frequency affect the electromagnetic wave?

    both A and B

    neither A nor B

    Energy carried by the wave decreases.

    Wavelength decreases.

    30s
    S10FE-IIa-b-47
  • Q2

    Which electromagnetic waves has the shortest wavelength?

    gamma ray

    microwave

    radio wave

    X – ray waves

    45s
    S10FE-IIa-b-47
  • Q3

    What color in the visible spectrum carries the lowest energy?

    red

    violet

    blue

    orange

    45s
    S10FE-IIa-b-47
  • Q4

    Radio wave, X-ray waves, and microwave are observed to be travelling in a vacuum. If the waves have a wavelength of 2 x 10^3 m 2 x 10^-9 m, 2 x 10^-1 m respectively, which of the three travels the fastest?

    They all travel at the same speed.

    X - ray waves

    microwave

    radio wave

    45s
    S10FE-IIa-b-47
  • Q5

    What will happen to the frequency and wavelength if the energy of the waves decreases?

    wavelength decreases, frequency increases

    wavelength increases, frequency decreases

    wavelength decreases, frequency decreases

    wavelength increases, frequency increases

    45s
    S10FE-IIa-b-47
  • Q6

    A certain FM radio station broadcasts at 90.5 MHz or 9.05 x 10^7 Hz. The radio wave travels at the speed of light, what is its wavelength?

    2.72 x 10 ^16 m

    3.31 m

    0.05 m

    2.72 x 10^10 m

    45s
    S10FE-IIa-b-47
  • Q7

    Which shows the correct arrangement of the electromagnetic wave in increasing frequency?

    x-ray waves, gamma ray waves, infrared waves, radio waves

    microwave, infrared waves, visible light waves, ultraviolet waves

    radio waves, infrared waves, microwaves, visible light waves

    Infrared waves, visible light waves, ultraviolet waves, gamma ray waves

    45s
    S10FE-IIa-b-47
  • Q8

    A radio wave with a frequency of 6.2 x 10^9Hz is detected to be travelling in space. The value of Planck’s constant is 6.626 x 10^-34 Js. What is the wavelength of the wave?

    0.40 m

    0.05 m

    1.861 x 10^18 m

    2 x 10 ^-18 m

    45s
    S10FE-IIa-b-47
  • Q9

    A radio wave with a frequency of 6.2 x 10^9Hz is detected to be travelling in space. The value of Planck’s constant is 6.626 x 10^-34 Js. How much energy does the wave carry?

    4.11 x 10-^24 J

    4.11 x 10^24 J·s

    4.11 x 10^-24 J·s

    4.11 x 10^24 J

    45s
    S10FE-IIa-b-47
  • Q10

    What electromagnetic wave has the highest energy?

    Ultraviolet wave

    Gamma ray

    Visible light

    Radio wave

    45s
    S10FE-IIa-b-47

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