Question 1

Rainbow is a natural phenomenon showing

Accepted Answer

A) Reflection 
B) Refraction 
C) Dispersion 
D) Diversion 
A) Reflection 
B) Refraction 
C) Dispersion 
D) Diversion C

Question 2

Which of the following is not luminous object?

Accepted Answer

A) sun 
B) candle 
C) moon 
D) Tube light 
A) sun 
B) candle 
C) moon 
D) Tube light C

Question 3

An owl can see clearly at night but not day time because it has

Accepted Answer

A) More rods and few cones 
B) Less rod and more cones 
C) More rods and more cone 
D) Less rods and less cones 
A) More rods and few cones 
B) Less rod and more cones 
C) More rods and more cone 
D) Less rods and less cones A

Question 4

If light falls perpendicularly on a plane mirror, what will be the angle in which it will be reflected?

Accepted Answer

A) 45 degree 
B) 90 degree 
C) 180 degree 
D) 360 degree 
A) 45 degree 
B) 90 degree 
C) 180 degree 
D) 360 degree

Question 5

To make a kaleidoscope we require

Accepted Answer

A) Three plane mirrors 
B) Four plane mirrors 
C) Three glass sheets 
D) Four glass sheets 
A) Three plane mirrors 
B) Four plane mirrors 
C) Three glass sheets 
D) Four glass sheets

Question 6

Whe we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called

Accepted Answer

A) Left-right confusion 
B) Lateral inversion 
C) Up -side down phenomenon 
D) mirage 
A) Left-right confusion 
B) Lateral inversion 
C) Up -side down phenomenon 
D) mirage

Question 7

In our eye _______cells can sense colour

Accepted Answer

A) Rod 
B) Cone 
C) Both rod and cone 
D) Neither rod nor cone 
A) Rod 
B) Cone 
C) Both rod and cone 
D) Neither rod nor cone

Question 8

In the retina of the eye, the area having no sensory cells is called

Accepted Answer

A) iris 
B) Blind spot 
C) cornea 
D) Dark spot 
A) iris 
B) Blind spot 
C) cornea 
D) Dark spot

Question 9

Light passing through a prism splits into its colour. This is called

Accepted Answer

A) Dispersion 
B) Dissolution 
C) Division 
D) None of the above 
A) Dispersion 
B) Dissolution 
C) Division 
D) None of the above

Question 10

If the angle of incidence of light falling on a plane mirror is 30degree, what will be the angle of reflection?

Accepted Answer

A) 90 degree 
B) 60 degree 
C) 30 degree 
D) 0 degree 
A) 90 degree 
B) 60 degree 
C) 30 degree 
D) 0 degree

Exam 1: Optics and Light: Exploring Reflection, Refraction, and Perception