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due to refraction of light
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Why does a coin appear bigger in size when immersed in water?
refraction (beams on light bend in the water)
What will happen if you flip a coin in a high speed airplane and why?
Nothing unusual IF the airplane is flying level and at a constant speed. The coin will go up, flip, and come down as expected. However, if the airplane is accelerating...in ANY direction, the path of the coin will appear to be altered once it is in the air. For instance if the plane dives as the coin is thrown, the coin will appear to accelerate in the Upward direction.
Would the addition of water help you see the coin if lights traveled faster in water than in air?
No. The only effect would be that a pencil, a ruler, or a soda straw dipped into the water would appear to bend toward you under the water, rather than away from you as it does now.
What does the coin that lies submerged at the bottom part of water looks?
As the coin submerged in water and kept at the bottom of the vessel and if it is looked right from the top then it will appear to be lifted up by a small distance such that the actual depth / apparent depth = refractive index of water. If suppose the actual height of level of water is 12 cm then the coim will be shifted up by 3 cm. So the apparent depth will be 9 cm. Hence refractive index of water = 12/9 = 4/3 = 1.333.
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'.
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 the coin is bigger in water?
Because the light travels slower in water, therefore the light has to hit the surface area before reaching the coin, therefore it looks larger because the light if reflecting off the container walls and the light is hitting the coin and making it appear larger.
Can copper coin float on water?
A coin can float on the water under a couple of circumstances. The most obvious is if it is made of a material lighter than water. And the second is if it is broad enough that it can be laid on the surface (carefully) and in such a way that the surface tension is not broken.
Why does a coin appear bigger in size when immersed in water?
refraction (beams on light bend in the water)
When you dive for a coin at the bottom of a swimming pool the coin is not exactly where it appeared to be?
It's not where it appears to be because the sun's rays are reflecting off of the water surface, and the water surface are bending the rays, so it looks like the coin is somewhere else.
Does salt dissolved in water change the number of drops that will balance on a coin?
Yes, it does. It reduces the number of drops that will balance on a coin by lowering the surface tension of the water.
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.
You toss a coin into a wishing well full of a liquid denser than the coin. will the coin sink?
no, it will float on the surface
What coin does the pygmy glider appear?
The pygmy glider does not appear on any coin. When Australia still had one cent coins, the feathertail glider appeared on this coin.
Why does water stick to copper pennies?
Water has two important qualities: cohesion and adhesion. Cohesion means that water "sticks" to itself, forming drops on a flat surface. Adhesion means that water sticks to other things, such as copper pennies. The water adheres to the coin and coheres to itself, forming a bulbous drop of water on the coin.
When did the first coin appear?
it was 1234 bc
When did Franklin D. Roosevelt appear on his coin?
The 1946 dime was when he first appeared on the coin
