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Light and sound

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Question 1

An art gallery installation features a miniature hanging LED bulb, which acts as a point light source SSS, positioned next to a vertical polished metal plate that acts as a plane mirror. The diagram shows one incident light ray from S S\,S striking the vertical mirror.

Vertical plane mirror with point source S

a.

Describe the step-by-step geometric construction required to locate the image S′ S'\,S′ of the LED source using ray tracing with two rays.

[6]
b.

State the type of image formed, and explain this classification in terms of the behavior of the light rays.

[3]

Light and sound Questions

  1. IGCSE
  2. /Physics
  3. /Light and sound