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Class 10 Science
Human Eye And Colourful World
Quiz 3
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The number of cones in the human eye is more than the number of rods.
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True
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False
A parallel beam of light falling on the eye gets focus on the retina because of refractions at
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various surfaces in the eye
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the cornea
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the vitreous humor
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the crystalline lens
The number of surfaces bounding a prism is
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1
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5
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3
0%
6
The wavelengths $\lambda_{v} $, $\lambda_{y}$ and $\lambda_{r}$ corresponding to violet, yellow and red lights are and respectively.
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$\lambda_{v} < \lambda_{y} < \lambda_{r}$
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$\lambda_{y} < \lambda_{v} < \lambda_{r}$
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$\lambda_{y} < \lambda_{r} < \lambda_{v}$
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$\lambda_{v} > \lambda_{y} > \lambda_{r}$
The combination responsible for admitting different amounts of light into the eye is
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rods and cones
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ciliary muscles and crystalline lens
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ciliary muscles and pupil
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iris and pupil
When the eye is focused on an object very far away, the focal length of the eye-lens is
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minimum
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half its maximum focal length
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equal to that of the crystalline lens
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maximum
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