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6.5 INTERFERENCE OF WAVES

Total questions: 12

Worksheet time: 15mins

Name
Class
Date
1.

NAME

4 lines
2.

CLASS

a)

4R

b)

4T

c)

4P

3.
What is the superposition of waves?
a)
when a single wave splits into two different waves at a point
b)
when two waves combine at the same place at the same time
4.
The following is an example of which type of interference? 
a)
constructive 
b)
destructive 
5.
The following is an example of which type of interference? 
a)
constructive 
b)
destructive 
6.

Interference phenomena occur when _____ coherent sources produce waves respectively.

a)

one

b)

two

c)

three

d)

four

7.

What type of interference do noise cancelling headphones use?

a)

Constructive Interference

b)

Destructive Interference

8.
A red light has a wavelength of 650nm.
It is shone through a double slit spacing 0.2mm onto a screen 2m away.
The fringe spacing is?
a)
6.5 x 10 -6 m
b)
1.6 x 10-3 m
c)
6.5 x 10-3 m
d)
1.6 x 10-6 m
9.

Which one of the following phenomena would be

observed if the wavelength of light were increased?

a)

The fringes would be brighter

b)

The distance between dark fringes would

decrease

c)

More bright fringes would appear on the

screen

d)

The separation between bright

fringes would increase

10.

Light is incident on two slits that are separated by
0.2 𝑚𝑚. The figure shows the resulting interference
pattern observed on a screen 1.0 𝑚 from the slits.
Determine the wavelength of light used in this
experiment.

a)

0.05 m

b)

0.50  ×\times  10 10−610^{-6}   m

c)

0.50  \times  10 10−710^{-7}   m

d)

5.0 \times  10 10−710^{-7}   m

11.

The diagram shows an interference of water waves in a ripple tank.

which of the following point are antinodes

a)

W and X

b)

X and Z

c)

Y and Z

d)

W and Y

12.
a)

A

b)

B

c)

C

d)

D