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A bright and vibrant depiction of various optical phenomena such as light rays, mirrors, and lenses, set against a scientific background.

Light and Optics Quiz

Test your knowledge on the fascinating world of light and optics with this engaging quiz! Challenge yourself with questions ranging from the properties of mirrors and lenses to the laws of reflection and refraction.

Participate to:

Enhance your understanding of optical principles
Prepare for exams or assessments
Learn interesting facts about light!

21 Questions5 MinutesCreated by ShiningStar42

Q1 :-A ray of light that strikes a plane mirror PQ at an angle of incidence of 30❰, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is:

30❰

45❰

60❰

90❰

Q2 :-An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the positions of the original and final images seen in the mirror is:

2 cm

4 cm

10 cm

22 cm

Q3 :-. A concave mirror produces a magnification of +4. The object is placed:

At the focus

Between focus and centre of curvature

Between focus and pole

Beyond the centre of curvature

Q4:-A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:

120o

90o

45o

Q5 :-An object is placed at 100 mm in front of a concave mirror which produces an upright image (erect image). The radius of curvature of the mirror is:

Less than 100 mm

Between 100 mm and 200 mm

Exactly 200 mm

More than 200 mm

Q9 :-Image formed by plane mirror is

Real and erect

Real and inverted

Virtual and erect

Virtual and inverted

Q10 :-In optics an object which has higher refractive index is called

Optically rarer

Optically denser

Optical density

Refractive index

Q11 :- Which of the following can make a parallel beam of light when light from a point source is incident on it?

Concave mirror as well as convex lens

Convex mirror as well as concave lens

Two plane mirrors placed at 90° to each other

Concave mirror as well as concave lens

Q12 :-Magnification produced by a rear view mirror fitted in vehicles

Is less than one

Is more than one

Is equal to one

Can be more than or less than one depending upon the position of the object in front of it.

Q13 :-Rays from Sun converge at a point 15 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?

15 cm in front of the mirror

30 cm in front of the mirror

Between 15 cm and and 30 cm in front of the mirror

More than 30 cm in front of the mirror

Q14 :-A full length image of a distant tall building can definitely be seen by using

A concave mirror

A convex mirror

A plane mirror

Both concave as well as plane mirror

Q15 :-The laws of reflection hold good for

Plane mirror only

Concave mirror only

Convex mirror only

All mirrors irrespective of their shape

Q17 :-Spherical mirror with reflecting surface curved inwards is called

Convex mirror

Concave mirror

Curved mirror

None of these

Q18 :-The mirror used as rear-view mirror in vehicles

Convex mirror

Plane mirror

Cylindrical mirror

Concave mirror

Q20 :-You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?

Kerosene

Water

Mustard oil

Glycerine

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Light and Optics Quiz

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