MCQ
If aperture of lens is halved then image will be
  • A
    No effect on size
  • B
    Intensity of image decreases
  • Both (a) and (b)
  • D
    None of these

Answer

Correct option: C.
Both (a) and (b)
Since intensity $\propto$ (Aperature); so intensity of image will decrease but no change in the size occurs.

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