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Interference of waves

Total questions: 50

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

What type of interference is represented in this diagram?

a)

Constructive

b)

Destructive

2.

What type of interference is represented in the diagram?

a)

Constructive

b)

Destructive

3.

What's happening at A?

a)

Two crests are combining to create constructive interference.

b)

A crest and a trough are combining to create destructive interference.

c)

Two crests are combining to create destructive interference.

d)

A crest and trough are combining to create constructive interference.

4.

What is happening at B?

a)

Two crests are combining to create constructive interference.

b)

A crest and a trough are combining to create destructive interference.

c)

Two crests are combining to create destructive interference.

d)

A crest and a trough are combining to create constructive interference.

5.

What type of interference do noise cancelling headphones use?

a)

Constructive Interference

b)

Destructive Interference

6.

Sound waves in musical instruments or tubes create standing waves that enhance which type of interference to make louder sounds?

a)

Constructive

b)

Destructive

7.

When a crest and a trough interfere, what occurs?

a)

They combine to create a higher amplitude wave.

b)

They counteract and the wave either lessens or stops completely.

c)

The wave changes into a longitudinal wave.

8.

What will be the result after these two waves overlap?

a)

A taller wave

b)

A shorter wave

c)

A wave with no amplitude

d)

3 waves

9.

line that joining all constructive interference we call as

a)

antinodal line

b)

nodal line

c)

noted line

d)

straight line

10.

what happen to value of x when a decrease

a)

constant

b)

decrease

c)

increase

11.

what happen to value of x when green light sources is replaced by red light sources

a)

decrease

b)

increase

c)

no change

12.

the contructive interference will produce _______ fringes interference

a)

bright

b)

dark

c)

stripe

13.

constructive interference occurs when crest meet crest and trough meet trough. what happen during destructive interference

a)

wavelength decrease

b)

frequency increase

c)

speed constant

d)

amplitude increase

14.

value of x is represent

a)

distance between 2 coherent sources

b)

wavelength

c)

distance between 2 consecutive bright or dark fringe

d)

distance between coherent sources and screen

15.

When the crest of one wave overlaps with the crest of another, what occurs?

a)

constructive interference, larger crest is formed

b)

constructive interference, smaller crest is formed

c)

destructive interference, larger crest if formed

d)

destructive interference, the two crests cancel each other out

16.

When the trough of one wave overlaps with the trough of another, what occurs?

a)

constructive interference, larger trough is formed

b)

constructive interference, smaller trough is formed

c)

destructive interference, larger trough if formed

d)

destructive interference, the two troughs cancel each other out

17.
Two transverse waves overlap.  Crests overlap with crests.  Troughs overlap with troughs.  The waves are
a)
In-phase
b)
Out-of-phase
c)
In-synchronicity
d)
Out-of-synchronicity
18.
If two overlapping waves are in-phase, the resultant wave will have ______ compared to the two waves.
a)
Greater amplitude
b)
Greater frequency
c)
Greater wavelength
d)
Greater wave speed
19.

If waves overlap and are in phase, how will that affect the resultant wave?

a)

Decrease the amplitude

b)

Increase the amplitude

c)

Decrease the frequency

d)

Increase the frequency

20.

Interference of light is evidence that:

a)

the speed of light is very large

b)

light is a transverse wave

c)

light is electromagnetic in character

d)

light is a wave phenomenon

21.

What principle is responsible for light spreading as it passes through a narrow slit?

a)

refraction

b)

polarization

c)

diffraction

d)

interference

22.

What principle is responsible for alternating light and dark bands when light passes through two or more narrow slits?

a)

refraction

b)

polarization

c)

diffraction

d)

interference

23.

When a light wave enters into a medium of different optical density,

a)

its speed and frequency change.

b)

its speed and wavelength change.

c)

its frequency and wavelength change.

d)

its speed, frequency, and wavelength change.

24.

Two light sources are said to be coherent if they

a)

are of the same frequency.

b)

are of the same frequency, and maintain a constant phase difference.

c)

are of the same amplitude, and maintain a constant phase difference.

d)

are of the same frequency and amplitude.

25.

Fenomena interferens berlaku apabila terdapat ______ sumber koheren yang menghasilkan gelombang.

(DLP) Interference phenomena occur when _____ coherent sources produce waves respectively.

a)

satu / one

b)

dua / two

c)

tiga / three

d)

empat / four

26.

Corak yang dipaparkan dalam gambar adalah corak interferens bagi gelombang ?

(DLP) Pattern shown in the picture is interference pattern of which waves?

a)

air / water

b)

cahaya / light

c)

bunyi / sound

27.

Situasi dalam gambar menunjukkan interens (a)   ?

(DLP) Situation in the picture shows which type of interference?

28.

Sumber gelombang monokromatik bermaksud sumber gelombang yang mempunyai satu ........ ?

(DLP) Monochromatic source is a wave source that has one ......... ?

(a)  

29.

Corak yang ditunjukkan dalam gambar adalah corak interferens bagi gelombang apa?

The pattern shown in the picture is the interference pattern of which waves?

(a)  

30.

Formula di atas adalah formula interferens. Simbol a mewakili apa?

(DLP) Formula above is the interference formula. The symbol a in the formula represents what quantity?

a)

panjang gelombang / wavelength

b)

Jarak antara dua sumber gelombang / Distance between the two wave sources

c)

Distance between two successive antinodal lines / Jarak antara dua garisan antinod berturutan

d)

Jarak antara sumber gelombang dan kedudukan x diukur / Distance between the wave source and the position where x is measured

31.

Formula di atas adalah formula interferens. Simbol x mewakili apa?

(DLP) Formula above is the interference formula. The symbol x in the formula represents what quantity?

a)

panjang gelombang / wavelength

b)

Jarak antara dua sumber gelombang / Distance between the two wave sources

c)

Distance between two successive antinodal lines / Jarak antara dua garisan antinod berturutan

d)

Jarak antara sumber gelombang dan kedudukan x diukur / Distance between the wave source and the position where x is measured

32.

Formula di atas adalah formula interferens. Simbol D mewakili apa?

(DLP) Formula above is the interference formula. The symbol D in the formula represents what quantity?

a)

panjang gelombang / wavelength

b)

Jarak antara dua sumber gelombang / Distance between the two wave sources

c)

Distance between two successive antinodal lines / Jarak antara dua garisan antinod berturutan

d)

Jarak antara sumber gelombang dan kedudukan x diukur / Distance between the wave source and the position where x is measured

33.

2 type of waves interferences are destructive and________

a)

constructive

b)

build up

c)

construction

34.

line that joining all constructive interference we call as

a)

antinodal line

b)

nodal line

c)

noted line

d)

straight line

35.

what happen to value of x when a decrease

a)

constant

b)

decrease

c)

increase

36.

what happen to value of x when green light sources is replaced by red light sources

a)

decrease

b)

increase

c)

no change

37.

the contructive interference will produce _______ fringes interference

a)

bright

b)

dark

c)

stripe

38.

value of x is represent

a)

distance between 2 coherent sources

b)

wavelength

c)

distance between 2 consecutive bright or dark fringe

d)

distance between coherent sources and screen

39.
Which of the following will increase the spacing of Young's double slit fringes
a)
A blue light is used instead of a red light
b)
the screen is moved closer to the slits
c)
the slits are moved closer together
d)
Each slit is made wider
40.

Diagram shows two wave pulses produced at P and Q. P and Q are at the same distance from X. Which waveform is observed at X ?

a)
b)
c)
d)
41.

What type of interference is being shown in the picture?

a)

Constructive

b)

Destructive

42.

What's happening at A?

a)

Two crests are combining to create constructive interference.

b)

A crest and a trough are combining to create destructive interference.

c)

Two crests are combining to create destructive interference.

d)

A crest and trough are combining to create constructive interference.

43.

Two light sources are said to be coherent if they

a)

are of the same frequency.

b)

are of the same frequency, and maintain a constant phase difference.

c)

are of the same amplitude, and maintain a constant phase difference.

d)

are of the same frequency and amplitude.

44.
When a wave strikes an object and bounces off
a)
medium
b)
refraction
c)
reflection
d)
interference
45.
You can see this text, your desk, and the person in front of you because light is being _______.
a)
absorbed
b)
refracted
c)
diffracted
d)
reflected
46.
a)
Constructive Interference
b)
Destructive Interference
c)
Refraction
d)
Diffraction
47.

The crest of a wave with an amplitude of 5m crashes into the crest of another wave with an amplitude of 3m. What will the amplitude of the resulting wave be?

a)

2 meters

b)

6 meters

c)

8 meters

d)

12 meters

48.

When two waves experience constructive interference, the result is….

a)

A bigger wave

b)

A smaller wave

c)

A wave that is completely destroyed

d)

They simply pass through each other

49.

What property of this wave is represented by the letter "A"

a)

amplitude

b)

crest

c)

trough

d)

wavelength

50.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength