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WorksheetsPS06-5 LENSES AND OPTICAL INSTRUMENTS
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
2.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
3.
This image is...
a)
Inverted and smaller
b)
inverted and bigger
c)
not inverted and smaller
d)
not inverted and bigger
4.
This image is...
a)
Inverted and smaller
b)
Inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
5.
An image that you can see , but does not really exist is called which of the following?
a)
Real Image
b)
Fake Image
c)
Virtual Image
d)
Digital Image
6.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
7.
An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is
a)
virtual.inverted
b)
virtual,upright
c)
real,inverted
d)
real,upright
8.
Which describes a convex lens?
a)
triangular in shape
b)
more transparent in the middle
c)
thicker on the edges than in the middle
d)
thicker in the middle than on the edges
9.
A surface that curves outward and causes light to spread out.
a)
convex mirror
b)
concave mirror
c)
plane mirror
10.
an example of a concave lens
a)
Flashlight
b)
camera lens
c)
microscope
d)
magnifying glass
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