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Dispersion of Light
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Dispersion of Light
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Dispersion of Light
Focal length is a length which lies between
lens and object
lens and image
lens and second focus
lens and focal point
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Dispersion of Light
Refractive index of diamond is
2
2.5
2.42
2.65
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Dispersion of Light
The waves at the bottom of spectrum are
infrared waves
gamma-rays
x-rays
ultraviolet rays
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Dispersion of Light
Our brain mixes the colors by
mixing the rods
mixing the cones
combining the signals from rods
combining the signals from cones
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Dispersion of Light
The number of types of cells in retina is
2
3
4
6
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Dispersion of Light
Screens of monitors and televisions are made by
red dots
red, yellow and green dots
red, green and blue dots
white dots
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Dispersion of Light
If the angle of incidence at the far-edge is too large, the light would
escape
not escape
end in the object
spread into seven colors
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Dispersion of Light
The change in speed of light when entering water is
5,000 km/s
50,000 km/s
100,000 km/s
200,000 km/s
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Dispersion of Light
‘Rainbows’ can only be seen when the sun
has hidden behind clouds
is shining
has hidden behind mountains
has set
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Dispersion of Light
The objects that do not produce light look colored because they
absorb light
reflect light
refract light
deflect light
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