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IMPORTANT
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A 1 cm object is placed perpendicular to the principal axis of a convex mirror of focal length 7.5 cm. Find its distance from the mirror if the image formed is 0.6 cm in size.

Important Questions on Geometrical Optics

MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 5
A candle flame 1.6 cm high is imaged in a ball bearing of diameter 0.4 cm. If the ball bearing is 20 cm away from the flame, find the location and the height of the image.
HARD
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 6
A 3 cm tall object is placed at a distance of 7.5 cm from a convex mirror of focal length 6 cm then it form an image at 103 cm from the mirror on the side opposite to the object , virtual and erect then find the size of the image in cm.
HARD
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 7

A U-shaped wire is placed before a concave mirror having radius of curvature 20 cm as shown in the figure. Find the total length of the image.

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MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 8
A man uses a concave mirror for shaving. He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged. Find the focal length of the mirror.
MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 9
Find the diameter of the image of the moon formed by a spherical concave mirror of focal length 7.6 m. The diameter of the moon is 3450 km and the distance between the earth and the moon is 3.8×105 km.
HARD
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 10
A particle goes in a circle of radius 2.0 cm. A concave mirror of focal length 20 cm is placed with its principal axis passing through the center of the circle and perpendicular to its plane. The distance between the pole of the mirror and the centre of the circle is 30 cm. Calculate the radius of the circle formed by the image.
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JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 11

A concave mirror of radius R is kept on a horizontal table. Water (refractive index =μ) is poured into it up to a height h. Where should an object be placed so that its image is formed on itself?

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MEDIUM
JEE Main
IMPORTANT
CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 18 - Geometrical Optics>EXERCISES>Q 12

A point source S is placed midway between two converging mirrors having equal focal lengths f as shown in the figure. Find the values of d  for which only one image is formed.

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