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CHETANA PUBLICATION-LENSES-Exercise
- Define the following: Distance of distinct vision
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- Distinguish between : Farsightedness and Nearsightedness
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- Distinguish between : Concave lens and convex lens.
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- Distinguish between : Real image and Virtual image
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- Give scientific reasons: Simple microscope is used for watch repair
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- Give scientific reasons: We cannot clearly see an object kept at a...
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- Give scientific reasons: If we bring an object closer than 25 cm fr...
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- Give scientific reasons: One can sense colours only in bright light...
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- Define the following: Convex lens
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- Define the following: Diverging lens
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- Give scientific reasons: You can not enjoy watching a movie or tele...
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- Give scientific reasons: A concave lens is used to correct myopia
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- Give scientific reasons: Old people sometimes use bifocal glasses.
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- Give scientififc reasons: Hypermetropia can be corrected by usin co...
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- Why do we have bring a small object near the eyes in order to see it c...
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- Which are the different types of lens?
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- What is the relation between H1,H2, u and v.
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- What is the power of lens?
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- What do you mean by combined focal length?
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- What is the use of astronomical telescope?
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