WorksheetsIGCSE Physics Topic 3.2 Light
Total questions: 15
Worksheet time: 13mins
Name
Class
Date
1.
A ray of light passes through a window. Which path does it take?
a)
A
b)
B
c)
C
d)
D
2.
The diagram shows the image of a clock in a plane mirror. What time is shown?
a)
02:25
b)
02:35
c)
09:25
d)
09:35
3.
A parallel beam of light falls on a converging lens. Which diagram shows what happens to the beam of light?
a)
A
b)
B
c)
C
d)
D
4.
A man sees a stone at the bottom of a pool of water. Which path could be taken by light from the stone to the man?
a)
A
b)
B
c)
C
d)
D
5.
A ray of light is reflected by two parallel plane mirrors X and Y. Which statement is correct?
a)
The angle of incidence at mirror X is 30°.
b)
The angle of incidence at mirror Y is 60°.
c)
The angle of reflection at mirror X is 120°.
d)
The angle of reflection at mirror Y is 0°.
6.
A student shines a narrow beam of white light into a prism as shown in the diagram. He sees a spectrum of colours emerging from the prism. Which three colours does he see at X, at Y and at Z?
a)
X: blue, Y:yellow, Z:red
b)
X: red, Y:blue, Z:yellow
c)
X: red, Y:yellow, Z:blue
d)
X: yellow, Y:red, Z:blue
7.
A ray of red light enters a semi-circular glass block normal to the curved surface. Which diagram correctly shows the partial reflection and refraction of the ray?
a)
A
b)
B
c)
C
d)
D
8.
An object 5.0 cm high is placed 2.0 cm from a converging (convex) lens which is being used as a magnifying glass. The image produced is 6.0 cm from the lens and is 15 cm high.
What is the focal length of the lens?
What is the focal length of the lens?
a)
2.0cm
b)
3.0cm
c)
4.0cm
d)
6.0cm
9.
Which colour, red or blue, has the higher frequency and which has the longer wavelength?
a)
higher frequency: blue
longer wavelength: blue
longer wavelength: blue
b)
higher frequency: blue
longer wavelength: red
longer wavelength: red
c)
higher frequency: red
longer wavelength: blue
longer wavelength: blue
d)
higher frequency: red
longer wavelength: red
longer wavelength: red
10.
An eye views an object O by reflection in a plane mirror. Which is the correct ray diagram?
a)
A
b)
B
c)
C
d)
D
11.
A ray of light enters a glass block at an angle of incidence i producing an angle of refraction r in the glass.
Several different values of i and r are measured, and a graph is drawn of sin i against sin r.
Which graph is correct?
Several different values of i and r are measured, and a graph is drawn of sin i against sin r.
Which graph is correct?
a)
A
b)
B
c)
C
d)
D
12.
The diagram shows the passage of a ray of light through a triangular glass block. What is the critical angle of light in glass?
a)
A
b)
B
c)
C
d)
D
13.
When white light is dispersed by a prism, compared with blue light, the red light is
a)
slowed down less and refracted less.
b)
slowed down less and refracted more.
c)
slowed down more and refracted less.
d)
slowed down more and refracted more.
14.
The diagram shows a ray of light from one point on a lamp striking a plane mirror. The image of the point on the lamp formed by the mirror is
a)
at P and is real.
b)
at P and is virtual.
c)
at R and is real.
d)
at R and is virtual.
15.
A semi-circular block is made from a plastic. A ray of light passes through it at the angles shown.
To two decimal places, what is the refractive index of the plastic?
To two decimal places, what is the refractive index of the plastic?
a)
1.25
b)
1.41
c)
1.51
d)
1.61
100 %
