Light UPSC Questions

Physics

Light MCQ Questions


13.

Match the following

List I List II
a) Incident ray 1.) The ray that comes back from the surface after reflection
b) Reflected ray 2.) The light ray strikes any surface
c) Angle of incidence 3.) The angle between the normal and the reflected ray
d) Angle of reflection 4.) The angle between the normal and the incident ray
A.

a-1,b-2,c-3,d-4

B.

a-2,b-1,c-4,d-3

C.

a-4,b-3,c-2,d-1

D.

a-3,b-4,c-2,d-1

😑 View Answer Rough Work Error
ANSWER :

B. a-2,b-1,c-4,d-3

14.
Diffused reflection takes place in ________ surface
A.
Smooth
B.
polished
C.
rough
D.
regular
😑 View Answer Rough Work Error
ANSWER :
C. rough
15.
In Incident ray, reflected ray and the normal drawn at the point of incidence to the reflecting surface, lie in the _______ plane
A.
Same
B.
Different
C.
Parallel
D.
Perpendicular
😑 View Answer Rough Work Error
ANSWER :
A. Same
16.
Image formed in a plane mirror undergoes ______
A.
Regular reflection
B.
Irregular reflection
C.
Lateral inversion
D.
None of the above
😑 View Answer Rough Work Error
ANSWER :
C. Lateral inversion
17.
Which of the following works on the concept multiple reflections
A.
Kaleidoscope
B.
Binoculars
C.
Telescope
D.
Sunglasses
😑 View Answer Rough Work Error
ANSWER :
A. Kaleidoscope
18.

Match of the following

List I List II
a) Mirror 1.) irregular surface
b) Chalk powder 2.) regular surface
c) Sun 3.) luminous object
A.

a-1,b-2,c-3

B.

a-2,b-1,c-3

C.

a-3,b-2,c-1

D.

a-1,b-3,c-2

😑 View Answer Rough Work Error
ANSWER :

B. a-2,b-1,c-3