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Question-1
A glowing electric bulb is an example for:
(A)
Point source of light
(B)
Extended source of light
(C)
Ray of light
(D)
Focus of light
Question-2
A mirror in which the inner hollow surface is the reflecting surface is called :
(A)
Convex mirror
(B)
Concave mirror
(C)
Plane mirror
(D)
None of these
Question-3
A spherical mirror in which the outer surface is reflecting is called a:
(A)
Concave mirror
(B)
Convex mirror
(C)
Plane mirror
(D)
Transparent mirror
Question-4
When the moon comes directly between the sun and the earth, the eclipse formed is:
(A)
Solar eclipse
(B)
Lunar eclipse
(C)
Annular solar eclipse
(D)
All of these
Question-5
Radius of curvature, r =
(A)
f/2
(B)
2f
(C)
2/3f
(D)
f
Question-6
An observer in the umbra experiences a:
(A)
Partial solar eclipse
(B)
Total solar eclipse
(C)
Partial lunar eclipse
(D)
Total lunar eclipse
Question-7
A centre of a spherical mirror is called the:
(A)
Centre of curvature
(B)
Pole of the mirror
(C)
Axis of the mirror
(D)
Center of perpendicular
Question-8
A solar eclipse occur only on a:
(A)
New moon day
(B)
Full moon day
(C)
Gibbous moon
(D)
Any time
Question-9
Rays of light always travel in a straight line.This phenomenon is called:
(A)
Total internal reflection
(B)
Rectilinear propagation
(C)
Scattering of light
(D)
Radiation of light
Question-10
Plane mirror are used in:
(A)
Telescope
(B)
Periscope
(C)
Joulemeter
(D)
Ammeter
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Cambridge Secondary Grade 6
IGCSE
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