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With the help of electroscope how you can find the presence of charge on the body?

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Suppose you have a glass rod which becomes positively charged when you rub it with wood.

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What is a gold leaf electroscope? Discuss* its working principle with a label diagram.

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How does electrostatic induction differ from charging by friction?

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What is meant by electrostatic induction? What is the method of , charging bodies by electrostatic induction?

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How can you show by simple experiments that there are two types of electric charges.

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What is meant by electrostatics or static electricity?.

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Why do we use refracting telescope with large objective lens of large focal length?

asked Oct 19, 2017 in Physics by shamroz (41.5k points)

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Under what conditions will a converging lens form a real image that is the same size as the object?

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Under what conditions will a converging lens form a virtual image?

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How does the thickness of lens affect its focal length?

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When an optician's testing room is small,

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Why is the driver's side mirror in many cars convex rather than plane or concave?

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Why or why not concave mirrors are suitable for make up?

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Explain why a fish under water appears to be at a different .

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In your own words, explain why light waves are refracted.

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A man raises his left hand in a plane mirror,

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How the size of the pupil of our eye will change: (a) in dim light (b) in bright light

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Where a pen is placed in front of a convex lens if the image is equal to the size of the pen?

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Will the bending of the light be more or less for a medium with high refractive index?

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