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Which of the above is a natural source of light?

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PHYSICS

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  • I. Moon
  • II. Sun
  • III. Street light
  • IV. Stars

Which of the above is a natural source of light?

A. I, II and IV only

B. I, II and III only

C. III and IV only

D. II and IV only

QUICK ANSWER…

D

DETAILS…

Natural sources of light are those bodies (possibly celestial) that produce and radiate their own light, they do not necessarily reflect light from other sources, but produce their own light.

  1. Moon is not a natural source of light because it only reflects light rays from the sun.
  2. The sun, by way of nuclear fusion produces its vast quantity of light and heat energy, it is a natural source of light.
  3. The street light is not a natural source of light, this is because it only manages to produce light after converting electrical energy from other sources.
  4. The stars, just like the sun, also produces their own light mostly by way of nuclear fusion.

Now for the right answer to the above question:

  1. Option A is incorrect. moon not a natural producer of light.
  2. Option B is incorrect. moon and street light not natural producers of light.
  3. C is incorrect. street light, not one of them.
  4. D is the correct answer.

KEY-POINTS…

You may please note these/this:

  • The sun, stars, and lightening are good examples of natural light sources.

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/ culled from 2017 JAMB-UTME physics question 8 /

Which of the above is a natural source of light? » QuizTablet
Which of the above is a natural source of light? » QuizTablet

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