﻿ Topic Reflection ( Ray Optics ), NCERT Physics Class 12 - MCQ Quiz by Dr. Mukesh Shrimali

# Topic Reflection ( Ray Optics ), Class 12 Physics MCQ Quiz Test

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MCQ 1:
When light is reflected from a mirror a change occurs in its -

MCQ 2:
On reflection from a plane surface, the following gets changed –

MCQ 3:
A wave or a pulse is reflected normally from the surface of a denser medium back into the rarer medium. The phase change caused by the reflection -

MCQ 4:
The frequency of incident ray is 3 × 108 Hz. The frequency after reflection -

MCQ 5:
The images of clouds and trees in water always less bright than in reality –

MCQ 6:
If a ray of light is incident on a plane mirror at an angle of incidence of 30°, then deviation produced by mirror is -

MCQ 7:
A rays is incident at an angle 38° on a mirror. The angle between normal and reflected ray is -

MCQ 8:
The image of a real object formed by a plane mirror is -

MCQ 9:
If you want to see your full image, then minimum size of the mirror -

MCQ 10:
Mark the correct options -

MCQ 11:
A point source of light is placed in front of a plane mirror -

MCQ 12:
Which of the following is not the case with image formed by a plane mirror -

MCQ 13:
A man 160 cm height stands in front of a plane mirror. His eyes are at a height of 150 cm from the floor. Then the minimum length of the plane mirror for him to see his full length image is -

MCQ 14:
Which of the following letters do not suffer lateral inversion -

MCQ 15:
A small object is 10 cm in front of a plane mirror. A man stands 30 cm from the mirror, behind the object and looks at the objects image. He should focus his eyes to see the image at a distance -

MCQ 16:
A plane mirror produces a magnification of -

MCQ 17:
An object is initially at a distance of 100 cm from a plane mirror. If the mirror approaches the object at a speed of 5 cm/s. Then after 6 s the distance between the object and its image will be -

MCQ 18:
A plane mirror is approaching you at 10 cm per second. You can see your image in it. At what speed will your image approach you -

MCQ 19:
If an object approaches towards a plane mirror with velocity V? then image approaches the object with velocity -

MCQ 20:
A car is moving towards a plane mirror at a speed of 30 m/s. Then the relative speed of its image with respect to the car will be -

MCQ 21:
An object is approaching a plane mirror at 5 cms per second. A stationary observer sees the image. At what speed will the image approach the stationary observer -

MCQ 22:
A person is standing in front of a plane mirror. If the mirror recedes with velocity v, the relative separation of person and his image per second is -

MCQ 23:
Two mirrors are placed perpendicular to each other. A ray strikes the first mirror and after reflection from the first mirror it falls on the second mirror. The ray after reflection from second mirror will emerge -

MCQ 24:
An object is placed between two plane mirrors set at 60° to each other. The maximum number of images seen will be -

MCQ 25:
A person is in a room whose ceiling and two adjacent walls are mirrors. How many images are formed ?

MCQ 26:
The number of images observable between two parallel plane mirrors is -

MCQ 27:
An object is placed symmetrically between the two plane mirrors inclined at an angle of 30°, then the total number of images formed, is -

MCQ 28:
If an object is placed unsymmetrically between two plane mirrors, inclined at the angle of 60°, then the total number of images formed is -

MCQ 29:
If an object is placed unsymmetrically between two plane mirrors, inclined at an angle of 72°, then the total number of images formed is -

MCQ 30:
Two plane mirrors are inclined to one another at an angle of 60°. A ray is incident on mirror M1 at an angle i. The reflected ray from mirror M2 is parallel to mirror M1 as shown in figure. The angle of incidence i is -

MCQ 31:
Images formed by an object placed between two plane mirrors whose reflecting surfaces make an angle of 90deg; with one another lie on -

MCQ 32:
Two plane mirrors are inclined to one another at an angle of 40°. A point object is placed symmetrically in between them. The number of images formed due to reflection at both mirrors is -

MCQ 33:
At what angle must two plane mirrors be placed so that incident and resulting reflected rays are always parallel to each other -

MCQ 34:
How many images of himself, does an observer see if two adjacent walls of rectangular room are mirror surfaced -

MCQ 35:
A ray gets successively reflected from two mirrors inclined at an angle of 40°. If the angle of incidence on the first mirror is 60°, then the net deviation of this ray is -

MCQ 36:
The focal length of spherical mirror is -

MCQ 37:
If a spherical mirror is immersed in a liquid, its focal length will -

MCQ 38:
In a concave mirror experiment, an object is placed at a distance x1 from the focus and the image is formed at a distance x2 from the focus. The focal length of the mirror would be -

MCQ 39:
An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. The image produced is -

MCQ 40:
An object of length 5cm is placed at a distance 1m from a concave mirror. If radius of curvature of mirror is 20 cm. Size of image will be -

MCQ 41:
When an object is placed at a distance of x m from a concave mirror, the magnification of the real image produced is 2. Then the radius of curvature of the mirror is -

MCQ 42:
A short linear object is placed along optic axis of a concave mirror. If distance of nearer end of the object from the mirror is greater than radius of curvature then -

MCQ 43:
Sun subtends an angle of 0.5° at the pole of a concave mirror or radius of curvature 15 m. The diameter of the image of the sun formed by the mirror is -

MCQ 44:
The focal length of a concave mirror is 12 cm. Where should an object of length 4 cm be placed so that an image 1 cm long is formed ?

MCQ 45:
The focal length of a concave mirror is 20 cm. Determine where an object must be placed to form an image magnified two times when the image is real -

MCQ 46:
In the above question, if the magnified image is virtual, the distance of the object from the mirror must be -

MCQ 47:
A virtual image, larger than the object can be produced by -

MCQ 48:
Given a point source of light, which of the following can produce a parallel beam of light

MCQ 49:
The image formed by a concave mirror -

MCQ 50:
A short linear object is placed along optic axis of a concave mirror. If the object is in between pole and focus, then -

MCQ 51:
The image formed by convex mirror of focal length 30 cm is a quarter of the size of the object. Then the distance of the object from the mirror, is -

MCQ 52:
A convex mirror is used to form an image of a real object. Then tick the wrong statement -

MCQ 53:
The largest distance of the image from a convex mirror of focal length 10 cm can be -

MCQ 54:
An object is placed at a distance of 25 cm from the pole of a convex mirror and a plane mirror is set so that the virtual images formed by two mirrors do not have any parallax. The plane mirror is 20 cm from the object. The focal length of the mirror is -

MCQ 55:
The rear-view mirror of a car is -

MCQ 56:
An inverted image of a real object can be seen in a convex mirror - An inverted image of a real object can be seen in a convex mirror -

MCQ 57:
A point source is placed 15 cm away from a convex mirror. A virtual image is formed at a distance of 6 cm. The radius of curvature of the mirror is -

MCQ 58:
A boy of height 1 m stands in front of a convex mirror. His distance from the mirror is equal to its focal length. The height of his image is -

MCQ 59:
A convex mirror has a focal length f. A real object is placed at a distance f in front of it from the pole, produces an image at -