📊 Science
Q. In the healthy human eye , the focusing is done by the
  • (A) To and fro movement of the eyelens.
  • (B) Changing carverature of the retina
  • (C) Changing in the convexity of the lens through ciliary muscles .
  • (D) Change in the refractive index of the eye fluid.
✅ Correct Answer: (C) Changing in the convexity of the lens through ciliary muscles .

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