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interference and electromagnetic waves

Total questions: 20

Worksheet time: 13mins

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 type of interference do noise cancelling headphones use?

a)

Constructive Interference

b)

Destructive Interference

4.

line that joining all constructive interference we call as

a)

antinodal line

b)

nodal line

c)

noted line

d)

straight line

5.

what happen to value of x when a decrease

a)

constant

b)

decrease

c)

increase

6.

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

a)

decrease

b)

increase

c)

no change

7.
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
8.

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

9.

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

10.

Which type of e.m waves has the lowest energy of this group?

a)

Radio

b)

Microwave

c)

Infrared

d)

Ultraviolet

11.

Radio waves and _______ are used in communication

a)

Microwaves

b)

Gamma rays

c)

Visible light

d)

Ultraviolet

12.
This color in the visible part of the spectrum has the lowest energy. 
a)
Blue
b)
Green
c)
Red
d)
Violet
13.

Which type of EM waves has the shortest wavelength?

a)

radio wave

b)

visible light

c)

gamma ray

d)

ultraviolet

14.

what happens to the frequency of a wave as wavelength increases?

a)

increases

b)

decreases

c)

remains constant

d)

diminishes to zero

15.

EM waves used in checking the authenticity of bank notes

a)

microwave

b)

infrared

c)

ultraviolet

d)

X-ray

16.

Utilized in treating cancer, the radiotherapy

a)

gamma ray

b)

x-ray

c)

visible light

d)

microwave

17.

Helpful in military night vision goggles

a)

radio wave

b)

microwave

c)

infrared

d)

light

18.
The shortest wavelength in visible light is______.
a)
violet
b)
red
c)
blue
d)
yellow
19.
The higher the frequency the ______ the energy. 
a)
higher
b)
lower
c)
neither, stays the same
20.

Which of the following lists the electromagnetic waves in order of increasing wavelength?

a)

X-rays, visible light, radio waves

b)

gamma rays, microwaves, UV rays

c)

infrared rays, radio waves, x-rays