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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 color of one part of spectrum is
brown
cyan
indigo
magenta
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Dispersion of Light
An example of object that uses concave lenses, is
contact lenses
telescope
spectacles
microscope
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Dispersion of Light
When light bends, it
causes tricks in the air
causes tricks on our eyes
causes tricks on our brain
damages our eyes
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Dispersion of Light
A colored film that fits over a lamp or camera to change the color of the light passing through it, is known as
effecter
film
filter
effect
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Dispersion of Light
The angle of incidence when it meets the next boundary while leaving the object, is
greater than zero
equal to zero
less than zero
perpendicular to the surface of object
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Dispersion of Light
An example of a device in which convex lens is used, is
mirror
telescope
spectacles
contact lenses
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Dispersion of Light
‘Prisms’ with total internal reflection are used in
telescopes
glasses
mirrors
side mirrors of cars
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Dispersion of Light
When light enters a dense medium, it
speeds up
slows down
increases its frequency
increases its wavelength
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Dispersion of Light
The refractive index assumes the entrance of light from
glass
water
vacuum
gas
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Dispersion of Light
The scientist who presented the theory of dispersion of light was
French
English
Chinese
Spanish
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