After a long day of travel, late at night, you swim in the pool of the hotel where you are staying. As you retire to your room, you realize you have lost the key to the pool. You get a powerful flashlight and walk around the pool shining the light on it. The light illuminates the key, which lies at the bottom of the pool, when you hold the flashlight 1.2 m from the surface of the water and point it toward the surface at a horizontal distance of 1.5 m from the edge (see figure). If the water at that point is 4.0 m deep, how far from the edge of the pool is the key?
Refraction of Light
Refraction is a change in the direction of light rays when they travel from one medium to another. It is the bending of light when it goes through different media.
Angle of Refraction
Light is considered by many scientists to have dual nature, both particle nature and wave nature. First, Particle nature is one in which we consider a stream of packets of energy called photons. Second, Wave nature is considering light as electromagnetic radiation whereas part of it is perceived by humans. Visible spectrum defined by humans lies in a range of 400 to 700 nm wavelengths.
Index of Refraction of Diamond
Diamond, the world’s hardest naturally occurring material and mineral known, is a solid form of the element carbon. The atoms are arranged in a crystal structure called diamond cubic. They exist in a huge variety of colours. Also, they are one of the best conductors of heat and have a very high melting point.
After a long day of travel, late at night, you swim in the pool of the hotel where you are staying. As you retire to your room, you realize you have lost the key to the pool. You get a powerful flashlight and walk around the pool shining the light on it. The light illuminates the key, which lies at the bottom of the pool, when you hold the flashlight 1.2 m from the surface of the water and point it toward the surface at a horizontal distance of 1.5 m from the edge (see figure).
If the water at that point is 4.0 m deep, how far from the edge of the pool is the key?
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