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प्रश्न
A stick partly immersed in water appears to be bent. Draw a ray diagram to show the bending of the stick when placed in water and viewed obliquely from above.
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उत्तर
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संबंधित प्रश्न
Calculate the focal length of a corrective lens having power +2D.
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(b) focal length of spectacle lens?
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(2) an erect image of the tree on the lens.
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