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प्रश्न
A person A can clearly see objects between 25 cm and 200 cm. Which of the following may represent the range of clear vision for a person B having muscles stronger than A, but all other parameters of eye identical to that of A?
विकल्प
25 cm to 200 cm
18 cm to 200 cm
25 cm to 300 cm
18 cm to 300 cm
उत्तर
18 cm to 200 cm
Person B has stronger ciliary muscles than person A. So, the muscles in his case can be strained more and the focal length of his eye can be reduced more compared to those of person A. While seeing far objects, the muscles are relaxed, so their strength will not affect the far point of the eye.
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