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Question-1
Light is a form of:
(A)
Energy
(B)
Electromagnetic radiation
(C)
Both (a) and (b)
(D)
Force
Question-2
A diverging lens has:
(A)
A real principal focus
(B)
A virtual principal focus
(C)
No principal focus
(D)
A principal focus same as a converging lens
Question-3
The moon is a:
(A)
Luminous body
(B)
Non- luminous body
(C)
Planet
(D)
Star
Question-4
The converging lens in our eye will form a:
(A)
Real inverted image on the retina
(B)
Virtual inverted image on the retina
(C)
Virtual erect image on the retina
(D)
Real erect image on the retina
Question-5
Which of the following is formed when light rays are stopped by an opaque object?
(A)
Image
(B)
Shadow
(C)
Virtual image
(D)
Real image
Question-6
The refraction of light is due to:
(A)
The change in the speed of light.
(B)
The change in the medium
(C)
Both (a) and (b)
(D)
Changes in the intensity
Question-7
The bending of light when passing from one medium to another is known as:
(A)
Reflection
(B)
Refraction
(C)
Dispersion
(D)
Rainbow
Question-8
The splitting up of light into its constituent colours is known as:
(A)
Deviation
(B)
Dispersion
(C)
Reflection
(D)
Refraction
Question-9
The speed of light in air is:
(A)
3 m/s
(B)
3 x 10
3
m/s
(C)
3 x 10
8
m/s
(D)
3 x 10
10
m/s
Question-10
What is the name of the curved transparent front surface of the eye?
(A)
Pupil
(B)
Iris
(C)
Cornea
(D)
Sclera
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Cambridge Secondary Grade 8
IGCSE
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