EASY
12th West Bengal Board
IMPORTANT
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A point source S is placed midway between two converging mirrors having equal focal length f. Find the distance between the mirrors for which only one image is formed.

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Important Questions on Reflection of Light

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 12

An object 2.5 cm long is placed vertically on the principal axis in front of a concave mirror of focal length f its distance 34f from it. Of what length and nature are its images formed?

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HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 13
Two plane mirror are placed back to back. They are then opened out slowly to form a wedge, their reflecting surfaces lying on the outside. A beam of parallel light becomes incident on the edge of the wedge. The two beams reflected from its face are found to make an angle of 120° with each other. Determine the angle between the mirrors.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 15
The plane of a room is a rectangle ABCD and the sides AB and CD are each 6 m and BC and AD are 7m. On the walls CD and AB are plane mirrors facing inwards. A person P stands at the midpoint of CD, facing AB. The first image of the side AB seen in the mirror on AB just fills the mirror. What is the distance between P to E. Draw diagrams to show how you arrive at your answer.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 16
A man moves towards a plane mirror with a velocity v in a direction making an angle θ With the normal to the mirror. Find the magnitude and direction of the velocity of the image relative to the man.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 17
An object is placed in front of a convex mirror at a distance of 50 cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and the plane mirror is 30 cm, it is found that there is no parallax between the images formed by the two mirrors.. What is the radius of curvature of the convex mirror ?
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 18

Two mirrors, one concave and the other convex, and placed coaxially with their reflecting surfaces facing each other. Their radii of curvature are equal, say R, and the distance between them is 2R. A point object is placed on the axis in such a way that it coincides with its image formed by two reflections, the first reflection being by the convex mirror. Determine the position of the object. Where will be the image formed if the first reflection takes place at the concave mirror ?

HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 19
A thin flat glass is placed in between a convex mirror of focal length 20 cm and a point source. The distance between the mirror and the glass plate is 5 cm. What is the distance between the plate and the source if its image formed by the rays reflected from the front surface of the glass plate coincides with the image formed by the rays coincidence of the images by direct observation? Trace the path of rays.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 1
The image of a building situated by the side of a large pool of water is formed in the water. The image is inverted