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Describe how you would determine the nature of the charge on a body by using electroscope.

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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 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.

asked Oct 22, 2017 in Physics by sonia (36.5k points)

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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?

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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, he uses a mirror to help him test the eye shift of 1iis patients. Explain why.

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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 depth below the surface than it actually is.

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In your own words, explain why light waves are refracted at a boundary between two materials.

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Explain Coulomb's law of electrostatics and write its mathematical form.

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Describe how you would distinguish between conductors and insulators with the help of electroscope.

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Describe how you would determine the nature of the charge on a body by using electroscope.

asked Oct 19, 2017 in Physics by sonia (36.5k points)

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