The sun is 150,000,000 km from earth; its diameter is 1,400,000 km. A student uses a 4.0-cm-diameter lens with f = 10 cm to cast an image of the sun on a piece of paper.a. Where should the paper be placed to get a sharp image?b. What is the diameter of the image on the paper?c. The intensity of the incoming sunlight is 1050 W/m2. What is the power of the light captured by the lens?d. What is the intensity of sunlight in the projected image? Assume that all of the light captured by the lens is focused into the image.
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.
The sun is 150,000,000 km from earth; its diameter is 1,400,000 km. A student uses a 4.0-cm-diameter lens with f = 10 cm to cast an image of the sun on a piece of paper.
a. Where should the paper be placed to get a sharp image?
b. What is the diameter of the image on the paper?
c. The intensity of the incoming sunlight is 1050 W/m2. What is the power of the light captured by the lens?
d. What is the intensity of sunlight in the projected image? Assume that all of the light captured by the lens is focused into the image.
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