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Light — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceLight1 Mark
MCQ
Which mirror is used in movie projectors?
  • A
    Convex mirror
  • ✓
    Concave mirror
  • C
    Plane mirror
  • D
    Parabolic mirror
✓

Answer

Correct option: B.
Concave mirror

Concave mirrors project a beam of light outward, which is what we want in a reflector or projector.
They used in things like $TV$ or movie projectors to make light rays spread out and produce enlarged images.

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