Physics
Grade-10
Easy
Question
When a person sees an object located nearby, the ciliary muscles _____ which makes the lens _____, _____ the focal length of the lens.
- Contract, thicker, decreasing
- Relax, thinner, increasing
- Contract, thinner, decreasing
- Relax, thicker, increasing
Hint:
We focus more while seeing nearer objects.
The correct answer is: Relax, thicker, increasing
The correct option is d)Relax, thicker, increasing.
- When we look at something close to our eyes, the ciliary muscles contract. This increases the curvature of the eye lens. Then the lens of the eye thickens. As a result, the focal length of the eye lens is reduced. This allows you to see nearby objects clearly.
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