MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

Explain, with a neatly drawn diagram how two plane mirrors inclined at right angles to each other form images of an object placed between them.

Important Questions on Reflection of Light

HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 4

Prove that a ray reflected from a plane mirror turns through twice the angle through which the mirror turns. 

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 5

Determine by drawing a ray-diagram, the number of images that will be formed for an object placed in between two plane mirrors if the inclination between the mirrors to 60°.

MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 6
Two plane mirrors are at right angles to each other. A ray of light is reflected successively by the Mirrors. Show that the incident ray and final emergent ray are parallel to each other.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 7
Prove, with the help of a diagram, that a mirror of minimum length must be hung at a definite position in the wall in order that a man can see his full image. 
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 8
A man stands at the centre of a room. A plane mirror hangs on the wall in front of him. Show that the minimum height of the mirror through which the man can see the full image of the wall behind him is one-third the height of the wall.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 9
Explain, with the help of a diagram, the action of periscopes. For what purpose is it used ?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 10
Prove, in the case of a convex mirror, that 1v-1u=2r=1f.
HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 11
Establish the relation connecting object distance, image distance and focal length of a spherical mirror. Show that the ratio of the length of the image formed by a concave mirror to the length of the object is equal to the ratio of their respective distances from the mirror.