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concave , convex lens

Total questions: 17

Worksheet time: 6mins

Name
Class
Date
1.

Image formed by a concave lens is always magnified.

a)

True

b)

False

2.

Image formed by a concave lens is always diminished.

a)

True

b)

False

3.

Image formed by a concave lens is always virtual

a)

True

b)

False

4.

Image formed by a concave lens is always erect.

a)

True

b)

False

5.

Image formed by a concave lens cannot be projected on screen.

a)

True

b)

False

6.

Image formed by a concave lens cannot be taken a photograph.

a)

True

b)

False

7.

Image formed by a concave lens is always within the focal length of the concave lens.

a)

True

b)

False

8.
___ is when light travels through a material and bends.
a)
Diffraction
b)
Dispersion
c)
Mirage
d)
Refraction
9.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
10.
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
11.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
12.

How does a concave lens differ from a convex lens?

a)

A convex lens is another way to describe a plane mirror; a concave lens is curved

b)

A concave lens is curved inward on both sides; a convex lens is on only one side

c)

A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

d)

A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

13.
What does the word "diverging" mean?
a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
14.
When an object is placed between the focal point and the convex lens, the image produced is ___.
a)
real, reduced, and inverted
b)
real, enlarged, and inverted
c)
virtual, enlarged, and upright
d)
virtual, reduced, and upright
15.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
16.
This image is...
a)
Inverted and smaller
b)
inverted and bigger
c)
not inverted and smaller
d)
not inverted and bigger
17.
If an object's distance from a convex lens were increased, the image would become which of the following?
a)
Larger and virtual
b)
Larger, only
c)
Smaller, only
d)
Smaller and virtual