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State the two laws of reflection of light
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2
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2575
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June 12, 2019
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Distance (v) with object distance (u) in case of a convex lens
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1
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1980
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April 3, 2019
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(a) If the image formed by a mirror for all positions of the object placed in front of it is always diminished
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1
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2815
|
April 3, 2019
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(a) To construct a ray diagram we use two rays which are so chosen that it is easy to know
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1
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21736
|
April 3, 2019
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(a) Define the following terms in the context of spherical mirrors: (i) Pole
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1
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21953
|
April 3, 2019
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(i) What should be the range of distance of an object placed in front of the mirror?
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1
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2786
|
April 3, 2019
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(a) Define focal length of a spherical lens
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1
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2333
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April 3, 2019
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What is meant by the power of a lens?
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1
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3942
|
April 3, 2019
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One half of a convex lens of focal length 10 cm
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1
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1912
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April 3, 2019
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The image of a candle flame placed at a distance of 30 cm from a spherical lens is formed
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1
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1720
|
April 3, 2019
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“A convex lens can form a magnified erect as well as magnified inverted image of an object placed in' front of it.”
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1
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2294
|
April 3, 2019
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(a) State the laws of refraction of light. Explain the term absolute refractive index of a medium
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1
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2720
|
April 3, 2019
|
|
(a) Explain the following terms related to spherical lens: (i) Optical centre
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1
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8084
|
April 3, 2019
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Explain the following terms related to spherical lenses : 1. Centres of curvature
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1
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947
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April 3, 2019
|
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1. Which type of mirror should he use and why?
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1
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2005
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April 3, 2019
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A student wants to project the image of a candle flame on the walls of school laboratory by using a lens:
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1
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5617
|
April 3, 2019
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State Snell’s law of refraction of light
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1
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3355
|
April 3, 2019
|
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(a) State the laws of refraction of light
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1
|
2149
|
April 3, 2019
|
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With the help of a ray diagram, state what is meant by refraction of light
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1
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4531
|
April 3, 2019
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List the new Cartesian sign convention for reflection of light by spherical mirror
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1
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7150
|
April 3, 2019
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State the law of refraction of light that defines the refractive index of a medium with respect to the other
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1
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7075
|
April 3, 2019
|
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List the sign conventions for reflection of light by spherical mirrors
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1
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11418
|
April 3, 2019
|
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Draw the ray diagram and also state the position
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1
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1888
|
April 3, 2019
|
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(i) “The refractive index of diamond is 2.42”. What is the meaning of this statement?
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1
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2393
|
April 3, 2019
|
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(a) One-half of a convex lens is covered with a black paper
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1
|
1087
|
April 3, 2019
|
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1. If the image formed by a lens is diminished in size and erect for all positions of the object, what type of lens is it?
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1
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11229
|
April 3, 2019
|
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A 6 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 25 cm
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1
|
17669
|
April 3, 2019
|
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The magnification of an image formed by a lens is -1
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1
|
7190
|
April 3, 2019
|
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If the image formed by a lens for all positions of an object placed in front
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1
|
792
|
April 3, 2019
|
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A 3 cm tall object is placed 18 cm in front of a concave mirror of focal length 12 cm
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1
|
1728
|
April 3, 2019
|