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A pencil partially dipped in water appears bent at the surface. This is due to:

Answer & Solution
Correct answer: B.
1. Light from the submerged part bends as it leaves the water. 2. Our brain assumes light travels in straight lines and traces the apparent position to a shifted location. 3. The mismatch between true and apparent positions makes the pencil look bent. _Source: NCERT Class 10 Science, Ch 9 "Light Reflection and Refraction", §9.3_
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