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A Light Topic Quiz

A variety of general questions on the subject of visible light. (Moderately Easy with picture assistance) 10 Questions.

 
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Prasutagus
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1
Question 1 Photo

What is the Earth’s primary source of light?

  • Fire
  • Candles
  • Light Bulbs
  • The Sun

2
Question 2 Photo

How many primary colours make up white light?

  • 2
  • 3
  • 4
  • 5

3
Question 3 Photo

When white light is refracted through a prism, what is the result?

  • A Visible Spectrum
  • Blackness
  • Strobing
  • Photosynthesis

4
Question 4 Photo

How many BASIC colours are there in the visible spectrum?

  • 5
  • 6
  • 7
  • 8

5
Question 5 Photo

Where else might you see the basic spectral colours of Red, Orange, Yellow, Green, Blue, Indigo & Violet?

  • In A Forest
  • In A Cave
  • In A Cloud
  • In A Rainbow

6
Question 6 Photo

How long does it take for light from the Sun to reach Earth

  • 8.3 Seconds
  • 8.3 Minutes
  • 8.3 Hours
  • 8.3 days

7
Question 7 Photo

Which colour has the longest wavelength?

  • Violet
  • Green
  • Red
  • Yellow

8
Question 8 Photo

When provitamin 7-dehydrocholestrol in the skin is activated by the ultraviolet light, what is produced?

  • Vitamin D
  • Moles
  • Saliva
  • Fat

9
Question 9 Photo

Which of the following terms is used to measure the intensity of a light source?

  • Newtons
  • Candelas
  • Pascals
  • Decibels

10
Question 10 Photo

What part of the eye controls the amount of light reaching the retina?

  • Lens
  • Cornea
  • Schlera
  • Iris

 

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