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Dispersion of Light
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General Science for Class 7
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Dispersion of Light
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Dispersion of Light
The dispersion can be noticed by passing a white light through
glass
mirror
water
prism
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Dispersion of Light
The angle between the normal ray and the ray leaving a medium is known as
critical angle
angle of incidence
angle of reflection
angle of refraction
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Dispersion of Light
The lens in a human eye is
convex
concave
biconcave
biconvex
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Dispersion of Light
Most of the objects we see
produce colors
produce lights
do not produce lights
do not produce colors
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Dispersion of Light
The concave lens
shrinks the image
magnifies the image
sharpens the images
increases the contrast of image
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Dispersion of Light
Refraction of light in ‘atmosphere’ causes
eye damage
mirages
dizziness
blindness
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Dispersion of Light
Converging means to
spread out
invert
bring together
shrink
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Dispersion of Light
We can see things because light
is absorbed by objects
enters our eyes
reflects from our eyes
is colorless
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Dispersion of Light
If a ray of light enters the surface of diamond at an angle of 24 Degree or more, the light would
end
reflect back
refract at a greater angle
totally internally reflect
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Dispersion of Light
An example of ‘refraction’ of light is
water
wall
brick
metal
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