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ELECTROMAGNETIC SPECTRUM MCQs

Total Questions : 6
Question 1. If the energy of an EM wave is directly proportional to its frequency, which of the following has the highest energy?
  1.    Radio
  2.    Microwave
  3.    Infrared
  4.    Visible light
 Discuss Question
Answer: Option C. -> Infrared
Question 2. A wave with a large wavelength will have a ______ frequency and _____ energy
  1.    high, low
  2.    high, high
  3.    low, high
  4.    low, low
 Discuss Question
Answer: Option D. -> low, low
Question 3. Which electromagnetic waves are used in devices such as heat lamps & TV remote controls?
  1.    ultraviolet rays
  2.    microwaves
  3.    infrared rays
  4.    Both A & B
 Discuss Question
Answer: Option C. -> infrared rays
Question 4. Newton’s prism experiments showed that white sunlight is made up of
  1.    the full electromagnetic spectrum.
  2.    only blue light.
  3.    all the colors of the visible spectrum.
  4.    only the longest wavelengths.
 Discuss Question
Answer: Option C. -> all the colors of the visible spectrum.
Question 5. Which of the following sets of EM radiation can harm your body cells?
  1.    Gamma ray, microwaves, infrared
  2.    Light, ultraviolet, x-ray
  3.    Microwaves, ultraviolet, infrared
  4.    Ultraviolet, x-ray, gamma ray
 Discuss Question
Answer: Option D. -> Ultraviolet, x-ray, gamma ray
Question 6. Which electromagnetic waves help doctors detect broken bones inside your body?
  1.    gamma rays
  2.    x-rays
  3.    ultraviolet rays
  4.    None of these
 Discuss Question
Answer: Option B. -> x-rays

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