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Q: Why does a coin appear to be raised in a glass of water?
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Why does a coin appear raised when placed in a water tank?

This is due to the phenomenon of refraction. When the rays of light from the coin travel from denser medium to rarer medium, the refracted rays bend away from the normal. The point from which the refracted rays appear to come gives the apparent position of the coin. Since the rays appear to come from a point above the Coin, it appears to be raised.


Why does the coin placed at the bottom of the container appers to be raised when the container is filled slowly with water?

it is because the view we are seeing the coin is from rarer to denser that is from air to water so the refractive index differs so the view we so the coin at the bottom of the cointer appears to be raised


Why does the coin appear to be nearer the surface of water?

due to refraction of light


Why does a coin placed in a basin filled with water appear to be nearer the surface of the water?

because it is refracted.


Why does a coin appear bigger in size when immersed in water?

refraction (beams on light bend in the water)


Why does a coin in water seem raised to us?

It's an optical illusion created by the bending of light though the water.


Why a coin placed at the bottom of a beaker containing water appears raised?

It is an optical illusion due to the fact that water is more dense than air and so slows the speed of light. When light travels from a less dense to a more dense material, it slows down and 'bends'.


How do you make a coin disapear?

You put the coin in a handkerchief over a glass of water. Then let someone hold the coin through the handkerchief. Then ask if anybody has a magic wand. If they don't. Next ask if anybody knows any magic words. Say the magic words and tell the person to drop the coin. Remove the handkerchief from over the glass of water. The coin should be gone. That is how I would do it. Oh I forgot one thing. When you put the coin in the handkerchief switch it with a clear glass disc.


How do you measure the volume of a 20cent coin?

Coins are not cylinders. The rim of the coin is sometimes raised, as well there are depressions and peaks from the design of the coin. You should use a specific gravity test with water and a scale.


Which one is an insulator - copper coin aluminum ladder glass or water.?

Glass would be the insulator of the choices given. All the other items are metal (conductors) or water (minerals cause conductivity).


What is the formula for finding the volume of a copper?

If you refer to a copper coin, simply place it in a measuring glass of water and work out the difference between the start and final volumes; that is the volume of the coin.


What happened according to Newton's Law of Inertia and Law of Motion when you slowly pulled the cardboard that had a coin sitting on it with the cardboard covering a glass of water Explain?

If you slowly move the cardboard the coin on top will move with the cardboard. Law of Inertia. There is not enough force to drop the coin into the water.