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प्रश्न
How are we able to see nearby and also the distant objects clearly?
थोडक्यात उत्तर
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उत्तर
Eyes have the ability to adjust its focal length which is known as the power of accommodation and we can see nearby and also the distant objects clearly. Relaxation of muscles makes the lens thinner and its focal length increases to make us see the distant objects clearly. The contraction of ciliary muscles increases the curvature of the eye lens and makes the eye lens thicker. Consequently, the focal length of the eye lens decreases. This enables us to see nearby objects clearly.
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