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Power of accommodation and the role of the ciliary muscles

The same question, asked 3 times: 2023*, 2024*, 2026. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2023

    31
    (a) State one important function of the following parts of the human eye : (i) Retina (ii) Pupil (b) State the role of ciliary muscles in focussing objects at varying distances from the eye.

  2. Question 2

    2024

    31 (a)
    Define the term power of accommodation of human eye. Write the name of the part of eye which plays a major role in the process of accommodation and explain what happens when human eye focuses (i) nearby objects and (ii) distant objects.

  3. Question 3

    2024

    31
    Define the term power of accommodation of human eye. What happens to the image distance in the eye when we increase the distance of an object from the eye ? Name and explain the role of the part of human eye responsible for it in this case.

  4. Question 4

    2026

    34 (A)
    (i) How does the change in curvature of the eye lens helps us in the process of seeing the nearby objects clearly ? (ii) State the range of the power of accommodation of a normal human eye.