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F4 Chapter 5.3 reflection of light

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

How do the speed and wavelength of the waves change when they are reflected?

a)

A

b)

B

c)

C

d)

D

2.

When the waves are reflected, which of the following changed?

a)

Speed

b)

Frequency

c)

Wavelength

d)

Direction of propagation

3.

Which diagram shows the correct pattern of reflection of water waves?

a)
b)
c)

d)

4.

Which of the following is an application of reflection of waves?

a)

Telescope

b)

Binocular

c)

Magnifying glass

d)

rear mirror

5.

Which of the following is correct about reflection of waves?

a)

Speed of the incident wave and the reflected wave is the same.

b)

The frequency of the incident wave is less than the reflected wave.

c)

The angle of the incident wave is greater than the angle of the reflected wave.

d)

The wavelength of the incident wave is shorter than the reflected wave.

6.

Diagram shows the determination of the depth of sea bed by ultrasonic wave. Time interval between the transmitted pulse and received pulse is 0.5s. Find the depth of the seabed. Speed of ultrasound in water is given as 1200ms11200ms^{-1}

a)

75m

b)

150m

c)

300m

d)

600m

7.

Ultrasonic wave (SONAR) is used in daily life for the application of the following below except

a)

Determine the depth of the sea bed

b)

Examine a foetus or internal organs.

c)

Use in communication for satellites .

d)

To remove the kidney stone.

8.

Which of the following is true for the reflection of wave? where i= incident angle and r= reflected angle

a)

i

b)

i>r

c)

i=90°

d)

i=r

9.

Diagram shows the key of incident wave and reflected wave. Which of the following diagram is correct for reflection of wave?

a)

b)

c)

d)

10.

Which of the following tools uses reflection of light?

a)

Periscope

b)

Stroboscope

c)

Stethoscope

d)

Microscope