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Ray Optics and Optical Instruments

Previous year questions with solutions · 2024 – 2026

96Questions
55Papers covered
7.16%Weightage 2026▼ 20.9% vs last year
’24
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
202634191.87.16% ▼ 20.9% vs last year
202543192.39.05% ▲ 185.9% vs last year
202419200.953.17%

13 questions · newest paper first

Ques. 1JEE Main 2026, 6 April (Evening Shift)

A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is placed at two different positions. The distance between the two positions of the object is cm.

Ques. 2JEE Main 2026, 4 April (Morning Shift)

A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm as shown in figure. The length of the image is cm. [figure]

  1. 2.5
  2. 5
  3. 7.5
  4. 7
Ques. 3JEE Main 2026, 24 January (Evening Shift)

Distance between an object and three times magnified real image is 40 cm. The focal length of the mirror used is cm.

  1. -20
  2. -15/2
  3. -10
  4. -15
Ques. 4JEE Main 2025, 7 April (Evening Shift)

A mirror is used to produce an image with magnification of 14. If the distance between object and its image is 40 cm, then the focal length of the mirror is .

  1. 10 cm
  2. 12.7 cm
  3. 10.7 cm
  4. 15 cm
Ques. 5JEE Main 2025, 4 April (Morning Shift)

When an object is placed 40 cm away from a spherical mirror an image of magnification 12 is produced. To obtain an image with magnification of 13, the object is to be moved :

  1. 20 cm away from the mirror.
  2. 20 cm towards the mirror.
  3. 80 cm away from the mirror.
  4. 40 cm away from the mirror.
Ques. 6JEE Main 2025, 4 April (Morning Shift)

Distance between object and its image (magnified by - 13) is 30 cm. The focal length of the mirror used is ( x4 )cm, where magnitude of value of x is .

Ques. 7JEE Main 2025, 4 April (Evening Shift)

A finite size object is placed normal to the principal axis at a distance of 30 cm from a convex mirror of focal length 30 cm. A plane mirror is now placed in such a way that the image produced by both the mirrors coincide with each other. The distance between the two mirrors is :

  1. 45 cm
  2. 15 cm
  3. 22.5 cm
  4. 7.5 cm
Ques. 8JEE Main 2025, 2 April (Evening Shift)

Two identical objects are placed in front of convex mirror and concave mirror having same radii of curvature of 12 cm, at same distance of 18 cm from the respective mirrors. The ratio of sizes of the images formed by convex mirror and by concave mirror is :

  1. 2
  2. 1/2
  3. 1/3
  4. 3
Ques. 9JEE Main 2025, 28 January (Evening Shift)

A concave mirror produces an image of an object such that the distance between the object and image is 20 cm. If the magnification of the image is -3, then the magnitude of the radius of curvature of the mirror is :

  1. 3.75 cm
  2. 15 cm
  3. 7.5 cm
  4. 30 cm
Ques. 10JEE Main 2025, 23 January (Evening Shift)

A concave mirror of focal length f in air is dipped in a liquid of refractive index . Its focal length in the liquid will be:

  1. f
  2. f
  3. f
  4. f( -1)
Ques. 11JEE Main 2025, 22 January (Morning Shift)

The driver sitting inside a parked car is watching vehicles approaching from behind with the help of his side view mirror, which is a convex mirror with radius of curvature R=2 m. Another car approaches him from behind with a uniform speed of 90 km/hr. When the car is at a distance of 24 m from him, the magnitude of the acceleration of the image of the car in the side view mirror is ' a '. The value of 100a is m/s2.

Ques. 12JEE Main 2024, 29 January (Morning Shift)

A convex mirror of radius of curvature 30 cm forms an image that is half the size of the object. The object distance is :

  1. -45 cm
  2. -15 cm
  3. 45 cm
  4. 15 cm
Ques. 13JEE Main 2024, 29 January (Evening Shift)

If the distance between object and its two times magnified virtual image produced by a curved mirror is 15 cm, the focal length of the mirror must be:

  1. -10 cm
  2. -12 cm
  3. 15 cm
  4. 10/3 cm