WorksheetsIGCSE/GCSE GENERAL WAVE PROPERTIES - LENSES
Total questions: 10
Worksheet time: 5mins
Which length is the focal length of the lens?
A
B
C
D
A lens is used to produce a magnified image, as shown in the scale diagram.
What is the linear magnification of the object?
0.33
3.0
4.0
6.0
A man is short-sighted.
Which ray diagram shows what happens in his eye when he looks at a distant object?
A
B
C
D
The ray diagram shows two rays from a point on an object placed in front of a diverging (concave) lens.
What are the properties of the image produced?
real and larger than the object
real and smaller than the object
virtual and larger than the object
virtual and smaller than the object
An object is viewed through a concave (diverging) lens.
What is the correct description of the image formed?
real, inverted, magnified
real, upright, diminished
virtual, inverted, magnified
virtual, upright, diminished
Convex lenses are used in cameras and as magnifying glasses.
Which types of image are formed?
A
B
C
D
An object is placed in front of a diverging lens as shown on the scale diagram.
The principal focus F is marked on each side of the lens.
What is the position of the image formed by the lens?
A
B
C
D
In which of the diagrams is the path of the light ray not correct?
A
B
C
D
A lens forms a blurred image of an object on a screen.
How can the image be made sharp and in focus on the screen?
by moving the object away from the lens and screen
by moving the screen away from the lens and object
by using a brighter object at the same position
by using a lens of longer focal length at the same position
The human eye has a converging lens system that produces an image at the back of the eye.
An eye views a distant object. What type of image is produced?
real, erect, same size
real, inverted, diminished
virtual, erect, diminished
virtual, inverted, magnified
