1
1 The red light produced by a laser is monochromatic.
State what is meant by monochromatic.
..................................................................................................................................................
.................................................................................................................................................. [1]
[Total: 1]
2 The diagram shows an object OX to the left of a thin converging lens. The principal focus on each
side of the lens is labelled F.
O
F F
(a) Two rays from the top of the object are incident on the lens, as shown in the diagram.
On the diagram, continue the paths of these two rays to show the position of the image of OX
formed by the lens. [2]
(b) Draw the image of OX formed by the lens. [1]
[Total: 3]
2
3 The diagram is a full-size ray diagram showing the formation of an image by a thin glass lens.
(full size)
Circle three items in the list which describe the nature of the image formed.
enlarged same size diminished inverted
upright real virtual
[3]
[Total: 3]
4 State one feature of a virtual image.
.................................................................................................................................................. [1]
[Total: 1]
3
5 The diagram is a full-size ray diagram showing the formation of an image by a thin glass lens.
(full size)
Determine the focal length of the lens.
focal length = .............................................. [1]
[Total: 1]
6 The full-scale diagram shows a small nail N in front of a thin converging lens. The line L represents
the lens.
X Y
1.0 cm
1.0 cm
(full-scale)
4
The focal length of the lens is 3.0 cm.
(a) On the diagram, mark and label with an F each of the two principal focuses of the lens. [1]
(b) The small nail N, of height 1.2 cm, is positioned 2.0 cm to the left of the lens.
(i) By drawing on the diagram, find the position of the image I of N and add image I to the
diagram. [3]
(ii) State and explain whether I is a real or a virtual image.
................................................................................................................................
................................................................................................................................ [1]
(iii) State the name given to a lens when it is used in this way.
................................................................................................................................ [1]
[Total: 6]
5
7 The full-scale diagram shows a small nail N in front of a thin converging lens. The line L represents
the lens.
X Y
1.0 cm
1.0 cm
(full-scale)
The focal length of the lens is 3.0 cm.
Rays of light, parallel to XY, are travelling towards the lens.
Describe what happens to the light after it passes through the lens.
..................................................................................................................................................
..................................................................................................................................................
..................................................................................................................................................
.................................................................................................................................................. [3]
[Total: 3]
6
8 (a) The diagram is a full scale diagram showing a converging lens, the two principal focuses F1
and F2 and an object PO.
F1 P F2
On the diagram, draw two rays from point O of the object to determine the position of the
image.
Label the image IJ. Measure the length of the image.
image length = ........................................................... [3]
(b) From the table below, ring three descriptions of the image.
diminished magnified real same size
same way up as object upside down compared to object virtual
[3]
[Total: 6]
9 The diagram shows how a converging lens forms an image of an object.
7
(not to scale)
(a) Determine the focal length of the lens.
focal length = .............................................. cm [1]
(b) Determine the distance of the image from the lens.
distance = .............................................. cm [1]
[Total: 2]
8
10 The diagram shows how a converging lens forms an image of an object.
(not to scale)
Describe the nature of the image formed by the lens in the diagram.
..................................................................................................................................................
..................................................................................................................................................
.................................................................................................................................................. [2]
[Total: 2]
9
11 The diagram shows a lens forming the image IY of object OP.
Circle two words or phrases from those shown to describe the image formed in the diagram.
enlarged upright inverted same size diminished
[2]
[Total: 2]
10
12 The diagram shows a lens forming the image IY of object OP.
On the diagram, draw an arrow to represent the focal length of the lens. Label this arrow f. [2]
[Total: 2]
13 The diagram shows a converging lens and an object. The side of each square represents 0.5 cm.
Using the diagram, determine the distance of the object from the centre of the lens.
distance = .............................................. cm [2]
[Total: 2]
11
14 Complete the following sentences about light.
Use words from the list.
atomic blue three electromagnetic
electronic violet five red seven
Light is part of a spectrum of radiation called the ................................................ spectrum.
A glass prism disperses white light into ................................................ colours.
The colour of light that is refracted least is ................................................ . [3]
[Total: 3]
15 State what is meant by monochromatic light.
Use one of the following quantities in your answer.
amplitude brightness frequency refractive index speed
..................................................................................................................................................
.................................................................................................................................................. [2]
[Total: 2]
12
16 The diagram shows an object OB positioned 20 cm from a thin converging lens. Both principal
focuses of the lens are labelled F.
Two rays from the tip B of the object are incident on the lens, as shown in the diagram.
On the diagram, continue the paths of these two rays to show the position of the image of OB
formed by the lens. Draw an arrow to show the size, position and orientation of the image of OB.[4]
[Total: 4]
13
17 A ray of white light passes through two prisms as shown in the diagram.
Draw one line to link position F to the correct effect at that position.
position effect
red, green and blue light
only produced
F white light produced
spectrum of visible light
produced
[1]
[Total: 1]
14
18 A ray of white light passes through two prisms as shown in the diagram.
Draw one line to link position E to the correct effect at that position.
position effect
reflection
E dispersion
diffraction
[1]
[Total: 1]
19 The distance between the centre of a thin converging lens and each principal focus is 5.0 cm.
The lens is used as a magnifying glass to produce an image I of an object O.
Underline the terms that describe the nature of the image produced by a magnifying glass.
diminished enlarged inverted real same size upright virtual [2]
15
[Total: 2]
20 The distance between the centre of a thin converging lens and each principal focus is 5.0 cm.
The lens is used as a magnifying glass to produce an image I of an object O.
The diagram is a full-scale diagram of the lens and the image I.
(a) (i) On the diagram, mark both principal focuses and label each of them F.
[1]
(ii) By drawing on the diagram, find the position of object O and add object O to the diagram.
[3]
(b) Using the diagram, determine the distance of object O from the centre of the lens.
distance = .............................................. [1]
[Total: 5]
21 Describe what is meant by the term principal focus for a thin converging lens.
..................................................................................................................................................
..................................................................................................................................................
.................................................................................................................................................. [2]
[Total: 2]
16
22 An object O is placed on the left of a thin converging lens. F is the principal focus.
This arrangement is shown in the diagram.
Two rays from the top of the object are incident on the lens, as shown in the diagram.
On the diagram, draw the path of each ray to locate the position of the image of O formed by the
lens.
On the diagram, draw an arrow to represent the image and label it I. [3]
[Total: 3]
17
23 The diagram shows green light passing through a triangular glass block.
Red light enters the triangular glass block shown in the diagram along the same path as the green
light.
On the diagram, draw the path of the red light within the triangular glass block. [1]
[Total: 1]
24 The diagram shows a converging lens and the image I formed when an object is placed to the left
of the lens. The principal focuses are labelled A and B and the centre of the lens is labelled C.
(a) On the diagram, draw two rays to locate the position of the object. Draw the object and label
it O. [3]
18
(b) Ring all of the following distances that are equal to the focal length of the lens.
AB AC CB 2AB
[2]
[Total: 5]
25 The diagram shows a converging lens and the image I formed when an object is placed to the left
of the lens. The principal focuses are labelled A and B and the centre of the lens is labelled C.
(a) On the diagram, draw two rays to locate the position of the object. Draw the object and label
it O. [3]
(b) Ring all of the following distances that are equal to the focal length of the lens.
AB AC CB 2AB
[2]
[Total: 5]
19
26 The diagram is a partially completed ray diagram.
On the diagram, extend the two rays from the arrowhead on the object until both reach the position
of the image.
[3]
[Total: 3]
27 The diagram is a partially completed ray diagram.
The object is moved a small distance away from the lens. State the effect, if any, this has on the
position and size of the image.
position .....................................................................................................................................
size ........................................................................................................................................... [2]
20
[Total: 2]
28 The diagram is a partially completed ray diagram.
The object is at O and its image is at I.
Which distance is the focal length of the lens? Tick one box.
C to F1
O to C
F2 to I
O to I
[1]
[Total: 1]
29 An object, OX, is placed in front of a converging lens.
The diagram shows a ray of light from the object passing through the lens.
21
(a) The lens forms an image of object OX.
(i) On the diagram, draw another ray from X to locate the position of the image. [1]
(ii) On the diagram, draw an arrow to represent the image of OX and label it I.
[1]
(iii) On the diagram, mark a principal focus for the lens and label it F. [1]
(iv) On the diagram, measure and record the focal length of the lens.
focal length = .............................................. cm [1]
(b) Describe the image I.
Choose words from the list. Tick (✓) two boxes.
enlarged
diminished
same size
inverted
upright
[2]
[Total: 6]
22
30 The diagram shows an incomplete ray diagram of a converging lens forming an image of the object,
O.
On the diagram, indicate the position of one principal focus of the lens. Label the principal focus,
F. [1]
[Total: 1]
31 A ray of white light passes through a prism and produces a spectrum of colours on a screen, as
shown in the diagram.
State the name of the process of separating white light into a spectrum.
.................................................................................................................................................. [1]
[Total: 1]
32 The diagram shows a converging lens used to form an image I of an object O.
23
(a) State the name of the points labelled F on the diagram.
........................................................................................................................................... [1]
(b) Describe the nature of the image I.
...........................................................................................................................................
...........................................................................................................................................
........................................................................................................................................... [2]
[Total: 3]
24
33 The diagram shows an incomplete ray diagram of a converging lens forming an image of the
object, O.
State the term given to the line XY.
.................................................................................................................................................. [1]
[Total: 1]
25
34 A ray of white light passes through a prism and produces a spectrum of colours on a screen, as
shown in the diagram.
Write the names of the seven colours that appear on the screen between A and B.
colour at A ..................................................
..................................................
..................................................
..................................................
..................................................
..................................................
colour at B ..................................................
[1]
[Total: 1]
35 The diagram shows an incomplete ray diagram of a converging lens forming an image of the
object, O.
26
(a) On the diagram, draw a ray of light from the top of the object that passes through the lens to
form the image. Use a ruler. [2]
(b) On the diagram, draw the image formed by the lens. Label the image I. [1]
(c) Choose words from the box that describe the image formed by the lens in the diagram.
diminished enlarged horizontal inverted same size upright
Draw a ring around each correct word. [2]
[Total: 5]
36 A converging lens is used as a magnifying glass.
The focal length of the lens is 10 cm.
Describe the position of the object in relation to the lens.
..................................................................................................................................................
.................................................................................................................................................. [1]
[Total: 1]
37 A converging lens is used as a magnifying glass.
The focal length of the lens is 10 cm.
Give three properties of the image formed by a magnifying glass.
..................................................................................................................................................
.................................................................................................................................................. [2]
27
[Total: 2]
38 A converging lens is used as a magnifying glass.
The focal length of the lens is 10 cm.
Describe the position of the image in relation to the lens and the object.
..................................................................................................................................................
.................................................................................................................................................. [1]
[Total: 1]
39 (a) In the diagram, a converging lens projects a sharp image of an object O on to a screen.
Complete the paths of the two rays from the object to the screen.
[2]
39 (b) The converging lens in (a) is replaced with a thinner converging lens. The object O and the
screen remain in the same positions as in (a). The thinner converging lens has a longer focal
length than the converging lens in (a).
Complete the paths of the two rays from the object to the screen in the diagram.
[2]
[Total: 4]
