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BECE (Ghana) Visible Light — practice questions

Explore 7 free Visible Light questions in BECE (Ghana) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Visible Light questions and exercises with answers

Showing questions 1–7 of 7.

How does the energy of light travel from the Sun to the Earth?Read the answer and worked solution →White light is passed through a prism and a band of colours appears. What does this show?Read the answer and worked solution →A shirt looks green in white light. What is happening to the light that lands on it?Read the answer and worked solution →A ray of light strikes a flat mirror at 30 degrees to the normal line. At what angle does it leave?Read the answer and worked solution →A ray of light passes from air into a glass block at an angle. What happens to the ray?Read the answer and worked solution →What does a converging lens do to the light rays that pass through it?Read the answer and worked solution →Where in the eye is the image formed before signals travel to the brain?Read the answer and worked solution →

Worked practice questions

How does the energy of light travel from the Sun to the Earth?

  1. By conduction through metal
  2. By radiation through space
  3. By convection through air
  4. By friction through dust
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Correct answer: B. By radiation through space

1. Between the Sun and the Earth there is empty space with no material to touch. 2. Light energy still crosses it, travelling in straight lines. 3. This way of transferring energy without any material is called radiation. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Radiation of light_

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White light is passed through a prism and a band of colours appears. What does this show?

  1. White light has only one colour
  2. White light is made of hot air
  3. White light is a mix of colours
  4. White light carries no energy
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Correct answer: C. White light is a mix of colours

1. A prism bends each colour of light by a slightly different amount. 2. The colours therefore come out spread apart instead of overlapping. 3. Seeing the band of colours shows that white light was a mixture all along. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Spectrum of visible light_

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A shirt looks green in white light. What is happening to the light that lands on it?

  1. Green is absorbed, the rest reflected
  2. All colours are absorbed by the shirt
  3. All colours are reflected by the shirt
  4. Green is reflected, the rest absorbed
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Correct answer: D. Green is reflected, the rest absorbed

1. White light carries every colour of the spectrum at once. 2. When light lands on a surface, some colours are absorbed and some reflected. 3. Only the reflected light travels on to reach our eyes. 4. A shirt that looks green must be reflecting the green light back. 5. Every other colour in the white light is being absorbed by the cloth. 6. A surface that absorbed every colour would reflect nothing and look black. 7. A surface that reflected every colour would look white. _Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Absorption of light_

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How to practise

  1. Choose a Visible Light question and try to work out your answer.
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