1.Which one of the following gives explanation to as to why a stick partly submerged obliquely in water appears to be bent at a point where it enter the water surface? (answer only) a. Dispersion of light on entering water b. Light does not travel in straight line in water. c. Diffraction of light by the surface of the water d. Refraction of light due to differences in speed of light in air 2.Which of the following property of light is responsible why the bottom of a clear and deep lake appears to be shallow? (answer only) a. diffraction b. reflection c. polarization d. refraction 3.If you look down on a pool of still water, you see your face clearly. Which one of the following gives the best explanation for this observation? (answer only) a. Dispersion of light on entering water b. Reflection of light by the surface of the water c. Refraction of light by the surface of the water d. Light is reflected from the surface of the water in different directions Answer only no need to explain thanks (letter only)
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.
1.Which one of the following gives explanation to as to why a stick partly
submerged obliquely in water appears to be bent at a point where it enter the water surface? (answer only)
a. Dispersion of light on entering water
b. Light does not travel in straight line in water.
c. Diffraction of light by the surface of the water
d. Refraction of light due to differences in
2.Which of the following property of light is responsible why the bottom of a clear and deep lake appears to be shallow? (answer only)
a. diffraction
b. reflection
c. polarization
d. refraction
3.If you look down on a pool of still water, you see your face clearly. Which one of the following gives the best explanation for this observation? (answer only)
a. Dispersion of light on entering water
b. Reflection of light by the surface of the water
c. Refraction of light by the surface of the water
d. Light is reflected from the surface of the water in different directions
Answer only no need to explain thanks (letter only)
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