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NAVNEET PUBLICATION - MAHARASHTRA BOARD-SCIENTIFIC REASONS-Lenses
- A simple microscope is used for watch repairs. Give reason
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- Watch repairers use a magnifying glass. Give reason
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- In old aget a bifocal lens is necessary for some persons. Give reason
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- A person suffering from myopia (nearsightedness) uses spectacles of co...
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- A person suffering from hypermetropia (farsightedness) uses spectacles...
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- You cannot enjoy watching a movie from a very short distance from the ...
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- We cannot clearly see an object kept at a distance less than 25 cm fro...
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- One can sense colours only in bright light. Give reason
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- The rays of light travelling through the optical centre of a lens pass...
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- A convex lens converges the rays of light falling on it.
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- A concave lens diverges the rays of light falling on it. Give reason
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- When a burning stick of incense is moved fast in a circle, a circle of...
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- Colour-blind persons are unable to distinguish between different colou...
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- It is risky to issue a driving license to a person suffering from colo...
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