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

Question 1

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

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

Answer 1

30 degree

Question 2

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

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

Answer 2

Lateral inversion

Question 3

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

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

Answer 3

Dispersion

Question 4

Rainbow is a natural phenomenon showing

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

Question 5

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

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

Question 6

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

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

Question 7

Which of the following is not luminous object?

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

Question 8

To make a kaleidoscope we require

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

Question 9

In our eye _______cells can sense colour

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

Question 10

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

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