MCQ
If aperture of lens is halved then image will be
- ANo effect on size
- BIntensity of image decreases
- ✓Both $(a)$ and $(b)$
- DNone of these
✓
Answer
Correct option: C.
Both $(a)$ and $(b)$
c
(c) Since intensity $\propto$ (Aperature)$^2$, so intensity of image will decrease but no change in the size occurs.
(c) Since intensity $\propto$ (Aperature)$^2$, so intensity of image will decrease but no change in the size occurs.
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