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Questions on Light

Q10. The diagram below shows a ray of light hitting the surface of a mirror made from thick glass.

Part of the incident ray is reflected from the glass surface and part of it penetrates the glass and is refracted. That light is then reflected by the silver backing of the mirror glass, refracting again as it emerges back into the air.

(a)

(i) Give the letter that represents one reflected ray

A or C

 

1 mark

(ii) Give the letter of one refracted ray

D or B

1 mark

(b) The incident ray is brighter than ray A. Give one reason for this.

any one from:

  • not all the light is reflected
  • some of the light is refracted
  • some of the light is absorbed
  • light is scattered by the glass

Accept 'it splits into two rays' or 'it splits'

1 mark

maximum 3 marks