WorksheetsIX Reflection
Total questions: 27
Worksheet time: 20mins
Which of the following is not a source of light?
A. candle
B. caver’s lamp
C. mirror
D. sun
Bouncing of a light ray when it strikes a reflecting surface is called.........
Refraction
Dispersion
Reflection
Diffraction
The ray of light that strikes a reflecting surface is called ________.
incident ray
reflected ray
normal ray
none of the above
According to laws of reflection,
angle of incidence > angle of reflection
angle of incidence < angle of reflection
angle of incidence = angle of reflection
both 1 and 2
Which diagram represents diffuse reflection?
A
B
C
D
which of the following is not a property of the image formed by a Plane mirror?
virtual and erect
Object size = image size
object distance = image distance
Real and inverted
Lateral inversion is
When a light ray hits an object as a curved wave
The term used to describe light rays reflecting off dark, matte surfaces
The same as 'angle of incidence'
When something is reflected in a plane mirror where left becomes right and right becomes left
If a capital letter R is seen in an ordinary mirror, what does it look like?
A
B
C
D
Which of the following is a concave mirror?
Four students A, B, C and D performed the experiment to determine the focal length of a concave mirror by obtaining the image of a distant tree on a screen. They measured the distances between the screen and the mirror as shown in the above figure.
The correct way of measuring accurate focal length of the mirror is
A
B
C
D
which of the following ray diagrams is correct for the ray of light incident on a concave mirror as shown in the figure 10.6?
A
B
C
D
Convex mirror is also called as
converging mirror
diverging mirror
plane mirror
silver mirror
The relation between focal length and radius of curvature is
R = 2f
1/f = 2R
f = R/2
R = 2/f
The point on the spherical mirror at the middle of the surface is called
focus
centre of curvature
pole
radius of curvature
The focal length of a plane mirror is ........
infinite
zero
1m
100m
A convex mirror has a focal length 12 cm. Then its radius of curvature is ........ cm
24
12
6
1.2
When the object is in between the centre of curvature (C) and focus (F) of a concave mirror, then the position of the image is ...........
At focus
At the centre of curvature
at infinity
beyond the centre of curvature
Which of the following characteristic of an image formed for a convex mirror?
Enlarged size
virtual image
Real image
inverted image
Which mirror is shown in the figure?
convex mirror
concave mirror
plane mirror
silver mirror
Mirror formula is defined as ........
A
B
C
D
When the object is at infinity, a point sized image is formed at ................ by the convex mirror
focus behind the mirror
focus in front of the mirror
radius of curvature
principal axis
The image formed by a concave mirror when the object is placed between the pole and the focus is ......
virtual, erect and magnified
virtual, erect and diminished
real, inverted and magnified
real, inverted and diminished
The angle of incidence of a ray of light passing through the centre of curvature of a concave mirror is ........... degree
105
180
90
0
Where will be the images of the Sun or the moon are formed by a concave mirror?
Focus
Pole
centre of curvature
beyond centre of curvature
What is the size of the image formed when an object is kept at the focus in front of concave mirror?
enlarged
diminished
highly enlarged
highly diminished
The focal length of a convex mirror is 40 cm. A point source of light is kept at a distance 40 cm from the mirror. Find the distance of the image from the mirror.
40 cm infront of the mirror
20 cm behind the mirror
40 cm behind the mirror
20 cm infront of the mirror
The image formed by a convex mirror is of size one-third the size of the object. How are u and v related?
v = -u/3
v = -2u
u = -3v
both A and C
