Why do things look bigger under water?
The index of refraction for water is 1.33. This larger index of refraction for water means that the angle the rays of light reach your eyes is larger in water than the angle would be in the air. This increase in the angle size of light to your eyes makes the object look larger in water than how it looks in the air.
Where would you aim to successfully spear a fish for dinner?
You should aim directly at the observed fish. The laser light will refract as it enters the water, following the exact reverse path as the light coming from the fish to your eye.
Why the spear did not hit the fish?
As the light from the fish leaves the water it bends away from the normal (right angled line to the surface). If the fisherman aims at the centre of the fish the spear will miss (the spear passing in front of the fish) but if they aim at where they think the tail is then they will hit the body of the fish.
What property of light makes it difficult for the person to spear the fish?
We now know that a light ray travelling from air to water will be refracted (change direction) and so too will light from water to air. This means that if you are trying to spear a fish in the water . . . . . .
Which Colour of light is refracted by the greatest amount?
The light waves are refracted as they enter and leave the prism. The shorter the wavelength of the light, the more it is refracted. As a result, red light is refracted the least and violet light is refracted the most – causing the coloured light to spread out to form a spectrum.
Why does a fish look closer in water?
Light rays reflected from the fish are refracted at the surface of the water, but the eyes and brain trace the light rays back into the water as thought they had not refracted, but traveled away from the fish in a straight line. This effect creates a “virtual” image of the fish that appears at a shallower depth.
Which material is the best example of refraction?
Glass. Glass is a perfect everyday example of light refraction. Looking through a glass jar will make an object look smaller and slightly lifted. If a slab of glass is placed over a document or piece of paper, then the words will look closer to the surface because of the different angle the light is bending.