HARD
12th West Bengal Board
IMPORTANT
Earn 100

Find the angle between two plane mirrors in order that a ray incident on the first mirror in a direction parallel to the second may after reflection in second mirror retraces its path.

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 4
Holding a plane mirror of length 1 cm at a distance of 25 cm from his eyes, a man can see the full image of a tree 50 m behind him. What is the height of the tree ?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 5
A man 2 m tall, whose eye-level is 1.84 m above the ground, looks at his image in a vertical mirror. What is the minimum vertical length of the mirror if the man is able to see the whole of himself ?
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 6
A man stands at the centre of a room. A plane mirror hangs in the wall in front of him. What should be the minimum height of the mirror through which the man can see the full image of the wall behind. The height of the wall is 4.2 m.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 7
How many images of himself can an observer see in a room whose ceiling and two adjacent walls are mirrors ?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 8
If a man runs at the rate of 5 cm/sec towards a mirror, at what rate will he approach his image formed by the mirror ?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 9
A man is running 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 his image relative to the man.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 10
Two plane mirrors inclined to each other form images of an object placed between them. Prove that the object and its images will lie on the circumference of a circle.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 12 - Reflection of Light>EXERCISE 12>Q 11
A ray is so incident on a plane mirror that the incident ray and its reflected ray subtend an angle of 20° between them. If the mirror is now rotated through 15°, what are the possible angles between the incident ray and the new reflected ray ?