Question

Assertion (A): When ciliary muscles contract, eye lens becomes thin.
Reason (R): Ciliary muscles control the power of the eye lens.
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, and Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

The ciliary muscles change the shape of the eye lens, allowing it to focus on objects at various distances. This is called accommodation.

Answer 1

The Correct Option is C

Assertion (A) is correct: contraction of ciliary muscles thins the lens. Reason (R) is incorrect; ciliary muscles change lens shape to focus on near/distant objects, thereby adjusting its power.
The correct answer is option (3).