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Home/ Recent question/Page 92

. The human eye can focus on objects at different distances by adjusting the focal length of the eye lens. This is due to

Question
Priyanka QNA Priyanka QNA
(a) presbyopia (b) accommodation. (c) near-sightedness. (d) farsightedness
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Class 10 science 3 years 1 Answer 5 views Enlightened 0

.The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to

Question
Priyanka QNA Priyanka QNA
(a) presbyopia (b) accommodation (c) near-sightedness (d) far-sightedness
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Class 10 science 3 years 1 Answer 7 views Enlightened 0

.The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is due to

Question
Priyanka QNA Priyanka QNA
(a) presbyopia (b) accommodation (c) near-sightedness (d) far-sightedness
0
Class 10 science 3 years 0 Answers 2 views Enlightened 0

The human eye forms an image of an object at its

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Priyanka QNA Priyanka QNA
(a) cornea (b) iris (c) pupil (d) retina
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Class 10 science 3 years 1 Answer 17 views Enlightened 0

change in focal length of an eye lens is caused by the action of the

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Priyanka QNA Priyanka QNA
(a) pupil (b) retina (c) ciliary muscles (d) iris
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Class 10 science 3 years 2 Answers 3 views Enlightened 0

In which of the following, the image of an object placed at infinity will be highly diminished and point sized? [NCERT Exemplar Problems]

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Rohit QNA Rohit QNA
(a) Concave mirror only (b) Convex mirror only (c) Convex lens only (d) Concave mirror, convex mirror, concave lens and convex lens
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Class 10 science 3 years 1 Answer 6 views Enlightened 0

A full length image of a distant tall building can definitely be seen by using [NCERT Exemplar Problems]

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Rohit QNA Rohit QNA
(a) a concave mirror (b) a convex mirror (c) a plane mirror (d) both concave as well as plane mirror
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Class 10 science 3 years 1 Answer 6 views Enlightened 0

.In which of the following, the image of an object placed at infinity will be highly diminished and point sized? [NCERT Exemplar Problems]

Question
Rohit QNA Rohit QNA
(a) Concave mirror only (b) Convex mirror only (c) Convex lens only (d) Concave mirror, convex mirror, concave lens and convex lens
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Class 10 science 3 years 1 Answer 8 views Enlightened 0

In torches, search lights and headlights of vehicles the bulb is placed [NCERT Exemplar Problems]

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Rohit QNA Rohit QNA
(a) between the pole and the focus of the reflector (b) very near to the focus of the reflector (c) between the focus and centre of curvature of the reflector (d) at the centre of curvature of the reflector
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The laws of reflection hold good for [NCERT Exemplar Problems]

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Rohit QNA Rohit QNA
(a) plane mirror only (b) concave mirror only (c) convex mirror only (d) all mirrors irrespective of their shape
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