Question

The part of the human eye which helps the eye lens to change its focal length, is

• A. iris
• B. ciliary muscle
• C. cornea
• D. aqueous humour

Answer 1

The Correct Option is B

The ciliary muscles are responsible for adjusting the focal length of the eye lens. When the ciliary muscles contract, they change the shape of the lens, making it thicker for near vision and thinner for distant vision. This process is known as accommodation. Thus, the ciliary muscle helps the eye lens to change its focal length.

The correct option is (B): ciliary muscle