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Question-1
When a ray of light enters an optically denser medium it:
(A)
Bent towards the normal
(B)
Bent away from the normal
(C)
Pass parallel to the normal
(D)
Never bends
Question-2
A line perpendicular to the surface where the incident ray strikes is called:
(A)
Incident ray
(B)
Reflected ray
(C)
Normal
(D)
Refracted ray
Question-3
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-4
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-5
Which of the following can split up sunlight into different colors of light?
(A)
A lens
(B)
A prism
(C)
A mirror
(D)
All the above
Question-6
Which of the following can be formed on a screen?
(A)
Real image
(B)
Virtual image
(C)
All images
(D)
Cannot be predicted
Question-7
Light is a form of:
(A)
Energy
(B)
Electromagnetic radiation
(C)
Both (a) and (b)
(D)
Force
Question-8
Which of the following is the light sensitive layer in a human eye?
(A)
Sclera
(B)
Pupil
(C)
Retina
(D)
Iris
Question-9
The moon is a:
(A)
Luminous body
(B)
Non- luminous body
(C)
Planet
(D)
Star
Question-10
The bending of light when passing from one medium to another is known as:
(A)
Reflection
(B)
Refraction
(C)
Dispersion
(D)
Rainbow
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Cambridge Secondary Grade 8
IGCSE
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