1The diagram shows a single ray of light being directed at a plane mirror.

What are the angles of incidence and reflection?

A 40o

40o

B 40o

50o

C 50o

40o

D 50o

50o2The diagram shows a mirror is titled at an angle of 40o to the bench. A ray of light is directed so that it hits the mirror at an angle of 10o to the surface of the mirror.

What is the angle of reflection?A10o

B20oC40o

D500E80o

3The diagram shows an image is formed by a mirror.At which point the object is placed? 4The diagram shows a ray of light from a small bulb strikes a plane mirror.

Where is the image of the bulb formed and its characteristic?

AAt P and virtual

BAt Q and real

CAt R and virtual5The diagram shows a girl stands at the side of a boy in front of a mirror. They are both the same distance from the mirror.

Where does the girl see the boys image?

6The diagram shows a wall clock .

What is the time shown by the image of the wall clock in a plane mirror as seen by a student.

A01:40

B04:50

C07:10

D10:20

7Diagram shows a student looking at a plane mirror.

The image observed by the student is

8Diagram shows an object O at a distance in front of a plane mirror CD. The plane mirror is moved by a distance 4 cm at LM.

What is the distance between object and the new image of the object?

A 12 cm

B 16 cm

C 24 cm

D 32 cm

E 64 cm

9 A boy stands in front of a plane mirror a distance 5 m . When the boy moves toward the mirror by 2 m , what is the distance between the boy and his new image?

A 2m

B 4m

C 6m

D8 m

E10 m

10The diagram shows a patient sitting in a testing room in front of a chart.What is the distance of image of the chart from the patient?

A 3 m

B 4 m

C 7 m

D 10 m

E 14 m

11The figure shows a light ray being incident to the surface of plane mirror MN. The mirror is then rotated anti-clock wise through an angle 10o. What is the new angle of reflection of the light ray?A 300

B 150C 100

D 5012The diagram shows five light rays A, B,

C ,D and E from an object, O and is reflected by a concave mirror to form an image I. Which of the light ray is not correct? 13The characteristics of an image , formed by a convex mirror for all positions of the object are

Adiminished, real and inverted

Bmagnified , real, and upright

Cdiminished ,virtual and upright

Dmagnified , virtual and inverted 14The figure shows a candle placed in front of a

concave mirror of focal length, f.

The image formed is

Areal, upright and magnified

Breal, inverted and diminished

Cvirtual, inverted and magnified

Dvirtual, upright and diminished15Which of the following states the right reason for replacing a plane mirror are used as rear- view mirrors in motor vehicles with a convex mirror ? ATo shine the object

BTo widen the field of view

CTo produce a brighter image

DTo produce a sharper image

16A ray diagram shows a light ray is directed at a concave mirror.

17A concave mirror has a focal length 20 cm. What happen to the size of image when an object is placed at a distance of 40 cm in front of the mirror?

A diminished

B magnified

C same size of object18An object is placed at a distance 18 cm from a concave mirror of focal length 10 cm. What is the characteristics of the image formed?

Areal , inverted and magnified

Bvirtual , inverted and magnified

Creal , upright and diminished

Dvirtual , upright and diminished19A concave mirror has a focal length 15 cm. The image formed by the mirror is virtual, upright and magnified. What is the object distance?

A 8 cm

B 15 cm

C 20 cm

D 30 cm

E 40 cm

20Diagram shows the legs of a boy who is standing inside a swimming pool. The legs appear shorter than they actually are when viewed from vertically above.

This is due to ..

A reflection of light

B refraction of light

C total internal reflection of light

PAPER 2 : SECTION A1. Figure 1 shows a clock in front a plane mirror.

a) Draw a ray diagram to show how the student can see the image of the clock[2 marks]

b) Compare the distance between the image and the mirror and the distance between the object and the mirror.

_______________________________________________________________________________

[1 mark]c) State the characteristic of image formed

_______________________________________________________________________________

[1 mark]d) Name the light phenomenon that enables the student can see the image of the clock.

_______________________________________________________________________________

[1 mark]2. Figure 2 shows a dentist examine the teeth of a patient.

a) Name the type of mirror above?

_______________________________________________________________________________

[1 mark]

b) Compare the distance between the teeth and the mirror and the focal length of the mirror.

_______________________________________________________________________________

[1 mark]

c) State the characteristics of the image of the teeth formed._______________________________________________________________________________

[1 mark]

d) Draw a diagram to show the image formed.

[2 marks]

PAPER 2 : SECTION B3. Figures (a) and (b) show the parallel rays of light directed toward the curved mirrors, J and K. CP is the radius of curvature, and F is the focal point of the mirrors.

(a) What is meant by focal length? [1mark](b) Using Figure(a) and (b) , compare the curvature of the mirrors, the radius of curvature ,their focal lengths and the effects reflected rays .

State the relationship between the curvature of the mirrors and their focal lengths. [5 marks](c) Figure(c) shows a cross section of a parabolic reflector used in a car headlamp.

The headlamp has two bulbs , X and Y. Bulb X is located at the focal point of the reflector while bulb Y is above bulb X.

Figure(c)

Explain what happens to the light rays from the bulb when only:

(i) bulb X is switched on

(ii) bulb Y is switched on

You may use diagrams to illustrate your answers.

[4 marks](d) You are given two pieces of plane mirror measuring 5 cm x 6 cm to make a periscope.(i) Using these mirrors and other materials, describe how you would make the periscope.

[4 marks]

(ii) Explain why the image observed through the periscope using plane mirrors are not very clear.[2 marks]

(iii) Suggest modification that can be made to the periscope to produce clearer and bigger images.

[4 marks]

PAPER 3 : SECTION B1. Diagram 1 shows two opaque cups, A and B, containing different amount of water. A similar coin is placed at the bottom of each cup.When the coin is observed from the same position, the image of the coin cup A cannot be seen, but the image of the coin in cup B can be seen.

Based on your observation on the depth of the water and the position of the image of the coins:

(a) State one suitable inference

(b) State one hypothesis that could be investigated

(c) With the use of apparatus such as a tall beaker, pins and other apparatus, describe an experiment to investigate the hypothesis stated in (b).In your description, state clearly the following

(i) The aim of the experiment(ii) The variables in the experiment

(iii) The list of apparatus and materials

(iv) The arrangement of the apparatus

(v) The procedure used in the experiment.

Describe how to control and measure the manipulated variables and how to measure the responding variables.

(vi) The way to tabulate the data

(vii) The way to analyse the data.

[12 marks]Angle of incident

Angle of refraction

The ray will be refracted on the principal axis a point called

A centre point

B focal length

C focal point

D centre of curvature

Principle axis

ray

PAPER 1 : OBJECTIVE QUESTIONS

REFLECTION OF LIGHT WAVES