Human Eye and Colourful World — Science STD 10 — Question
CBSE BoardEnglish MediumSTD 10ScienceHuman Eye and Colourful World2 Marks
Question
How does the thickness of the eye lens change when we shift looking from a distant tree to reading a book?
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Answer
The thickness of eye lens increases because while reading a book the ciliary muscles contract increasing the curvature of eye lens and this decreases the focal lenght enabling us to see nearby objects clearly.
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