Chapter 10 : Human Eye and the Colourful World
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The colour of the Sun appears white at noon because:
2 / 50
Which device is used to correct vision defects?
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Which phenomenon explains the blue colour of deep sea water?
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Why does the sky appear dark to astronauts?
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The eye defect caused due to decrease in flexibility of eye lens is:
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Which colour is at the bottom of the rainbow?
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Which colour is at the top of the rainbow?
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The transparent fluid between cornea and eye lens is:
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The main function of the retina is to:
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Which of the following is a natural phenomenon caused by dispersion?
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Which lens is thicker at the centre?
12 / 50
Cataract affects which part of the eye?
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The scattering of light by colloidal particles is called:
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Which colour has the minimum wavelength?
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Which colour has the maximum wavelength?
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What is the nature of the eye lens?
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The human eye can focus nearby and distant objects due to:
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Which part of the eye gives colour to the eye?
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The phenomenon of splitting of light by a prism was discovered by:
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The coloured band obtained after dispersion is called:
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Which instrument uses the persistence of vision?
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The colour used as a danger signal is red because it:
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Which colour of light scatters the most?
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The defect in which the image forms behind the retina is:
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The defect in which the image forms before the retina is:
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The focal length of the eye lens is adjusted by:
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Which lens is used in correcting presbyopia?
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The pupil appears black because:
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Which atmospheric phenomenon causes stars to twinkle?
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The sequence of colours in a rainbow is represented by:
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The white light consists of:
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The reddish appearance of the Sun at sunrise and sunset is due to:
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Tyndall effect is due to:
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The colour of the sky appears blue due to:
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Which colour deviates the most in a prism?
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Which colour deviates the least in a prism?
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The rainbow is formed due to:
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The splitting of white light into its component colours is called:
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Which defect occurs due to ageing?
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Hypermetropia is corrected using:
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Myopia is also known as:
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The transparent front part of the eye is called:
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Which part of the eye acts like a screen?
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The persistence of vision of the human eye is about:
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The least distance of distinct vision for a normal eye is:
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A person who cannot see nearby objects clearly suffers from:
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Which defect of vision can be corrected using a concave lens?
48 / 50
The ability of the eye lens to adjust its focal length is called:
49 / 50
The image formed on the retina of the eye is:
50 / 50
Which part of the human eye controls the amount of light entering the eye?
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