Rays of light coming from the sun (a very distant object) are near andparallel to the principal axis of a concave mirror. After reflecting from the mirror, where will the rays cross each other at a single point? The rays_________. (a) will not cross each other after reflecting from a concavemirror (b) will cross at the point where the principal axis intersects themirror (c) will cross at the center of curvature (d) will cross at the focalpoint (e) will cross at a point beyond the center of curvature
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.
Rays of light coming from the sun (a very distant object) are near and
parallel to the principal axis of a concave mirror. After reflecting from the mirror, where will the rays cross each other at a single point? The rays
_________. (a) will not cross each other after reflecting from a concave
mirror (b) will cross at the point where the principal axis intersects the
mirror (c) will cross at the center of curvature (d) will cross at the focal
point (e) will cross at a point beyond the center of curvature
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