MEDIUM
CUET (UG)
IMPORTANT
Earn 100

Assertion : We cannot produce a real image by plane or convex mirrors under any circumstances

Reason: The focal length of a convex mirror is always taken as positive

100% studentsanswered this correctly

Important Questions on Ray Optics and Optical Instruments

EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 2
Assertion: If object is placed between pole and focus of concave mirror and now mirror is broken and only half portion of mirror is left, then intensity of image will reduce.

Reason: Lesser reflecting surface will be available for reflection.
MEDIUM
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 3
The radius of curvature of concave mirror is 24 cm and the image is inverted and magnified by 1.5 times. The object distance is
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 4
An object is placed in front of a convex mirror of focal length f. Find the maximum and minimum distance of two object from the mirror such that the image is real and magnified.
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 5
A man having height 6 m, observes image of 2 m height erect, then mirror used is
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 6
Two points P and Q lie on either side of an axis XY as shown. It is desired to produce an image of P at Q using a spherical mirror, with XY as the optic axis. The mirror must be

Question Image
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 7

A mirror producing a virtual image larger than the object is:

MEDIUM
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 8
A square wire of side 1 cm is placed perpendicular to the principle axis of a concave mirror of focal length 15 cm at a distance of 20 cm. The area enclosed by the image of the wire is
EASY
CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 9 - Ray Optics and Optical Instruments>Exercise>Q 9
A man has a concave shaving mirror of focal length 0.2 m. How far should the mirror be held from his face in order to give an image of two fold magnification?