Practice Test | Kullabs.com
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• ### If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will _______.

pass between the centre of focus and pole
pass through the focus
pass through the pole
move in the same path
• ### An image formed by a convex mirror is always ______.

real, inverted and diminished
virtual, real and magnified
virtual, erect and diminished
real, erect and magnified
• ### The energy that gives us sensation of sight is called ______.

mechanical energy
light energy
potential energy
electrical energy

beam
photon
gluon
atom
• ### Path of a light beam is ______.

curved
parallel to the ground
depends on medium
sometimes straight sometimes curved
• ### A light beam can be _______.

reflected
sometimes straight sometimes curved
refracted
all of the answers are right
• ### The spherical mirror whose inner surface is reflective is called ______.

reflective mirror
convex mirror
plain mirror
concave mirror
• ### The concave mirror is also called ______.

diverging mirror
converging mirror
both
none
• ### Convex mirror is also called ______.

none are right
diverging mirror
conversing mirror
• ### The image formed by a concave mirror is ______.

erect
real
bigger
depends on where it is placed
• ### The image formed by convex mirror is ______.

all of the above answers are right
inverted
real
smaller than object
• ### In concave mirror what is the location of the image formed when an object is at infinity?

in between center of curvature and principal focus
at the principal focus
at the center of curvature
beyond center of curvature
• ### In concave mirror what is the location of the image formed when an object is in between infinity and C?

beyond center of curvature
in between center of curvature and principal focus
at the center of curvature
at the principal focus
• ### In concave mirror what is the location of image formed when object is at center of curvature ?

at the principal focus
at the center of curvature
in between center of curvature and principal focus
beyond center of curvature
• ### What is the size of the image when the object is placed at the center of curvature of concave mirror?

smaller than object
incomplete information to deduce the answer
larger than object
same size of the object
• ### The reason for using convex mirror in cars is because ______.

convex mirror has narrow field of view so it is easier to focus on traffic
all of the answers are correct
convex mirror always form an erect image so easy identification of object
convex mirror forms bigger image so it is easier see the object
• ### Light is a form of energy produced by a ______.

opaque object
non-luminous object
luminous object
transparent object
• ### An example for non-luminous object is ______.

the sun
the moon
a candle
an electric bulb

Absorption
reflection
Polarization
Refraction

normal
irregular
regular
diffused

irregular
diffused
normal
regular
• ### The image formed by a plane mirror is  ______.

real and erect
real and inverted
virtual and inverted
real or virtual
• ### The centre of the sphere of which the spherical mirror forms a part is called ______.

focus
centre of curvature
pole
vertex

Real
undefined
at the pole
virtual
• ### A converging mirror is known as ______.

convex mirror
plane mirror
concave mirror
cylindrical mirror
• ### Radius of curvature of a concave mirror is always ______ to the mirror.

inclined at 45o
Parallel
perpendicular
inclined at 60o
• ### If the image formed by a concave mirror is virtual, erect and magnified, then the object is placed

at the focus
between the pole of the mirror and the focus
at the centre of curvature
beyond the centre of curvature
• ### Dentists use a _____________ to focus light on the tooth of a patient.

plane mirror
cylindrical mirror
concave mirror
convex mirror

1.5 m
2 m
3 m
1 m

2 m
5 m
1.5 m
3 m

90o
45o
0o
180o

Converging
Diverging
virtual
Real

50o
25o
00
90o

50o
100o
25o
90o
• ### Which of the following is used to make a periscope?

Concave mirror
Plane mirror
Lens
Convex mirror
• ### Which mirror has a wider field of view?

Cylindrical mirror
Convex mirror
Concave mirror
Plane mirror

15 cm
30 cm
45 cm
7.5 cm
• ### A ray of light passing through the ______ retraces its path.

Pole
centre of curvature
Focus
vertex
• ### When an object is placed at the focus of a concave mirror, the image will be formed at ______.

centre of curvature
pole
focus
infinity
• ### Butter paper is an example for ______ object.

an opaque
a luminous
a transparent
a translucent

1.5 cm
0.5 cm
2.0 cm
1.0 cm
• ### If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will ______.

pass through the pole
pass through the centre of curvature
pass through the focus
retrace its path