WorksheetsOptics: Convex
Total questions: 27
Worksheet time: 7hrs 45mins
Image behind the mirror is
virtual
real
upside down
upright
image above the principal axis (PA) is
virtual
real
upright
upside down
This ray diagram is for which mirror?
concave
convex
plane
window
In the image, all the rays meet at F, What is F
focal length
focal point
center of curvature
reflection
this type of mirror is used in supermarkets to see around bends
concave
convex
plane
window
Virtual Images are
Always upright
can be obtained on screen
always magnified
all the above
A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?
a convex mirror
a concave mirror
a convex lens
a concave lens
In the illustration, the light ray striking the object is-
An object is placed at a distance of 27.0 cm away from a thin concave mirror with a focal length of 9.00 cm. How far from the lens is the image located and what type of image is formed?
13.5 cm and real
3.00 cm and real
0.33 cm and virtual
0.15 cm and virtual
Which statement is true about convex mirror?
image formed is virtual and diminished
have a positive value of focal length
image formed is real and diminished
image formed is real and magnified
The distance from center of mirror, C to the pole of mirror is given as
2f
v
u
2R
What is the formula for magnification?
-di / m
-hi / ho
hi / ho
m/d0
An object is located 30 cm from a concave mirror. The mirror forms a real image at a distance of 20 cm. What is the focal length of this mirror?
13.5 cm
0.0833 cm
12.0 cm
8.7 cm
An object is held 9cm from a convex mirror and produces an image 6cm tall that is 4cm away from the mirror. What is the height of the object?
-13.5 cm
13.5 cm
-54 cm
-2.7 cm
An object is located 30 cm from a concave mirror. The mirror forms a real image at a distance of 20 cm. What is the radius of this mirror?
24 cm
6 cm
12.0 cm
8.7 cm
