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The black opening between the aqueous humour and the lens is called

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(a) retina (b) iris (c) cornea (d) pupil

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Class 10 science 3 years 1 Answer 9 views Enlightened 0

Bi-focal lens are required to correct

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(a) astigmatism (b) coma (c) myopia (d) presbyopia

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Class 10 science 3 years 3 Answers 127 views Enlightened 1

Bi-focal lens are required to correct

Question

(a) astigmatism (b) coma (c) myopia (d) presbyopia

Class 10 science 3 years 0 Answers 6 views Enlightened 0

8. The focal length of the eye lens increases when eye muscles

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(a) are relaxed and lens becomes thinner (b) contract and lens becomes thicker (c) are relaxed and lens becomes thicker (d) contract and lens becomes thinner

Class 10 science 3 years 0 Answers 5 views Enlightened 0

8. The focal length of the eye lens increases when eye muscles

Question

(a) are relaxed and lens becomes thinner (b) contract and lens becomes thicker (c) are relaxed and lens becomes thicker (d) contract and lens becomes thinner

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Class 10 science 3 years 1 Answer 15 views Enlightened 0

When light rays enter the eye, most of the refraction occurs at the

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(a) crystalline lens (b) outer surface of the cornea (c) iris (d) pupil

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Class 10 science 3 years 1 Answer 27 views Enlightened 0

The bluish colour of water in deep sea is due to

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(a) the presence of algae and other plants found in water (b) reflection of sky in water (c) scattering of light (d) absorption of light by the sea

Class 10 science 3 years 0 Answers 7 views Enlightened 0

The clear sky appears blue because

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(a) blue light gets absorbed in the atmosphere. (b) ultraviolet radiations are absorbed in the atmosphere. (c) violet and blue lights get scattered more than lights of all other colours by the atmosphere. (d) light of all other colours is ...

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Class 10 science 3 years 1 Answer 5 views Enlightened 0

The clear sky appears blue because

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Class 10 science 3 years 0 Answers 8 views Enlightened 0

At noon the sun appears white as

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(a) light is least scattered (b) all the colors of the white light are scattered away (c) blue color is scattered the most (d) red color is scattered the most

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Class 10 science 3 years 1 Answer 7 views Enlightened 0

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Class 10 science