Waves: Properties, Behaviors, and the Electromagnetic Spectrum

Question 1

Which type of wave is used in radio communication?

Accepted Answer

Electromagnetic waves

Answer

Mechanical waves

Answer

Transverse waves

Answer

Longitudinal waves

Question 2

What happens when two waves of equal frequency and amplitude meet in phase?

Accepted Answer

Constructive interference

Answer

Destructive interference

Answer

Standing waves

Answer

Polarization

Question 3

Which region of the electromagnetic spectrum has the lowest energy?

Accepted Answer

Radio waves

Answer

Microwaves

Answer

Infrared radiation

Answer

Ultraviolet radiation

Question 4

What is the primary medical application of ultrasound waves?

Accepted Answer

Imaging internal organs

Answer

Treating kidney stones

Answer

Destroying cancerous tissue

Answer

Measuring blood pressure

Question 5

Which factor does NOT affect the speed of a wave?

Accepted Answer

Amplitude

Answer

Wavelength

Answer

Frequency

Answer

Medium through which it travels

Question 6

What is the phenomenon called that bends light as it passes from air into water?

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Polarization

Question 7

Identify the property that is NOT a characteristic of waves.

Accepted Answer

Height

Answer

Frequency

Answer

Amplitude

Answer

Velocity

Question 8

Which wave type requires a medium to propagate?

Accepted Answer

Mechanical waves

Answer

Electromagnetic waves

Answer

Transverse waves

Answer

Longitudinal waves

Question 9

What is the term for the bending of waves as they pass through an opening?

Accepted Answer

Diffraction

Answer

Refraction

Answer

Interference

Answer

Reflection

Question 10

Which color of light has the shortest wavelength?

Accepted Answer

Blue

Answer

Red

Answer

Yellow

Answer

Green

Question 11

What is the relationship between wavelength and frequency?

Accepted Answer

Wavelength is inversely proportional to frequency.

Answer

Wavelength is directly proportional to frequency.

Answer

Wavelength is independent of frequency.

Answer

The relationship depends on the medium through which the wave travels.

Question 12

Which type of wave is characterized by particles vibrating perpendicular to the direction of wave propagation?

Accepted Answer

Transverse wave

Answer

Longitudinal wave

Answer

Surface wave

Answer

Standing wave

Question 13

What is the electromagnetic spectrum?

Accepted Answer

A range of frequencies and wavelengths of electromagnetic radiation.

Answer

A set of colors visible to the human eye.

Answer

A measure of the intensity of electromagnetic radiation.

Answer

A type of wave that travels only through water.

Question 14

Which of the following waves has the highest energy?

Accepted Answer

Ultraviolet radiation

Answer

Radio waves

Answer

Microwaves

Answer

Infrared radiation

Question 15

What is the speed of light in a vacuum?

Accepted Answer

299,792,458 m/s

Answer

340 m/s

Answer

186,000 miles per second

Answer

It depends on the color of light.

Question 16

Which of the following is NOT a property of waves?

Accepted Answer

Temperature

Answer

Amplitude

Answer

Frequency

Answer

Velocity

Question 17

Which type of wave can propagate through a vacuum?

Accepted Answer

Electromagnetic wave

Answer

Transverse wave

Answer

Longitudinal wave

Answer

Mechanical wave

Question 18

What is the relationship between the speed (v), wavelength (λ), and frequency (f) of a wave?

Accepted Answer

v = λf

Answer

v = f/λ

Answer

λ = vf

Answer

f = v/λ

Question 19

What is the difference between a crest and a trough in a wave?

Accepted Answer

Crest is the highest point, trough is the lowest point

Answer

Trough is the highest point, crest is the lowest point

Answer

Crest is the point of maximum displacement, trough is the point of zero displacement

Answer

Trough is the point of maximum displacement, crest is the point of zero displacement

Question 20

What is the process by which light waves are converted into electrical signals?

Accepted Answer

Photoelectric effect

Answer

Refraction

Answer

Diffraction

Answer

Polarization

Question 21

Which of the following is NOT a type of electromagnetic wave?

Accepted Answer

Sound waves

Answer

Radio waves

Answer

X-rays

Answer

Ultraviolet radiation

Question 22

What is the wavelength of a wave with a frequency of 50 Hz and a velocity of 200 m/s?

Accepted Answer

4 m

Answer

100 m

Answer

200 m

Answer

400 m

Question 23

Which property is NOT associated with waves?

Accepted Answer

Mass

Answer

Frequency

Answer

Wavelength

Answer

Amplitude

Question 24

What is the velocity of an electromagnetic wave in a vacuum?

Accepted Answer

3 x 10^8 m/s

Answer

3 x 10^9 m/s

Answer

3 x 10^10 m/s

Answer

3 x 10^11 m/s

Question 25

Indicate the unit of wavelength.

Accepted Answer

Metre

Answer

Hertz

Answer

Second

Answer

Volt

Question 26

Which characteristic is NOT associated with diffraction?

Accepted Answer

Constructive interference

Answer

Wave bending around obstacles

Answer

Wave spreading

Answer

Destructive interference

Question 27

When light moves from air into glass, it:

Accepted Answer

Slows down and bends towards the normal

Answer

Slows down and bends away from the normal

Answer

Speeds up and bends towards the normal

Answer

Speeds up and bends away from the normal

Question 28

Which of the following is an application of interference?

Accepted Answer

Holography

Answer

Fibre optics

Answer

Radar

Answer

Lasers

Question 29

Summarize the superposition principle in wave phenomena.

Accepted Answer

Waves can interfere with each other

Answer

Waves can pass through each other without interaction

Answer

Waves only exist in a vacuum

Answer

Waves always have a constant amplitude

Question 30

Differentiate between longitudinal and transverse waves, providing examples to illustrate their distinct properties.

Accepted Answer

Longitudinal waves vibrate parallel to the direction of propagation, while transverse waves vibrate perpendicular to it.

Accepted Answer

Sound waves are longitudinal, and light waves are transverse.

Answer

Longitudinal waves have a higher wavelength than transverse waves.

Answer

Transverse waves can only travel through solids, while longitudinal waves can travel through all states of matter.

Question 31

Which of the following is NOT a property of electromagnetic waves?

Accepted Answer

They have mass.

Answer

They can travel through a vacuum.

Answer

Their speed in a medium is constant.

Answer

They are transverse waves.

Question 32

What happens to the wavelength of a wave when it enters a denser medium while its frequency remains unchanged?

Accepted Answer

It decreases.

Answer

It remains the same.

Answer

It increases.

Answer

It becomes zero.

Question 33

Which of the following is a characteristic of constructive interference?

Accepted Answer

The waves combine to produce a wave with a larger amplitude.

Answer

The waves cancel each other out.

Answer

The waves produce a new wave with a different frequency.

Question 34

What is the principle behind the operation of a fiber optic cable?

Accepted Answer

Total internal reflection

Answer

Refraction

Answer

Diffraction

Question 35

Which of the following waves has the highest frequency?

Accepted Answer

Gamma rays

Answer

Microwaves

Answer

Radio waves

Answer

Visible light

Question 36

What is the key difference between a longitudinal wave and a transverse wave?

Accepted Answer

In a longitudinal wave, particles vibrate parallel to the direction of wave propagation; in a transverse wave, particles vibrate perpendicular to the direction of wave propagation.

Answer

Longitudinal waves travel faster than transverse waves.

Question 37

Describe the Doppler effect.

Accepted Answer

The change in frequency of a wave as the source or observer moves.

Answer

The bending of a wave as it passes through a medium.

Answer

The reflection of a wave off a surface.

Question 38

Identify the type of wave generated by a vibrating guitar string.

Accepted Answer

Transverse

Answer

Surface

Answer

Longitudinal

Answer

Electromagnetic

Question 39

Describe the relationship between frequency and wavelength in a wave.

Accepted Answer

Inversely proportional

Answer

Unrelated

Answer

Directly proportional

Answer

Equal

Question 40

What phenomenon is responsible for the bending of light around the edge of an object?

Accepted Answer

Diffraction

Answer

Refraction

Answer

Reflection

Answer

Polarization

Question 41

Which component of the electromagnetic spectrum possesses the longest wavelength?

Accepted Answer

Radio waves

Answer

Ultraviolet radiation

Answer

Infrared radiation

Answer

Microwaves

Question 42

What defines a polarized wave?

Accepted Answer

Vibrations confined to a single plane

Answer

Speed exceeding that of light

Answer

Production only by transverse waves

Answer

Exclusively monochromatic

Question 43

Which principle enables fiber optic communication?

Accepted Answer

Total internal reflection

Answer

Diffraction

Answer

Refraction

Question 44

Select the property that accurately describes waves:

Accepted Answer

Waves possess the ability to transmit energy without physically transferring matter.

Answer

Waves exclusively travel in a rectilinear path.

Answer

Waves can only propagate through solid mediums.

Question 45

What defines the wavelength of a wave?

Accepted Answer

Wavelength corresponds to the distance separating two consecutive crests or troughs.

Answer

Wavelength signifies the velocity at which the wave travels.

Answer

Wavelength represents the vertical height of the wave.

Question 46

Identify the type of wave that exhibits longitudinal propagation:

Accepted Answer

Sound waves exemplify longitudinal waves.

Answer

Electromagnetic waves exhibit transverse waves.

Answer

Seismic waves illustrate transverse waves.

Answer

Water waves exemplify transverse waves.

Question 47

Which of the following is not a type of electromagnetic wave?

Accepted Answer

Sound waves are not a type of electromagnetic wave.

Answer

Radio waves exemplify a type of electromagnetic wave.

Answer

X-rays exemplify a type of electromagnetic wave.

Question 48

Describe how electromagnetic waves facilitate communication:

Accepted Answer

Electromagnetic waves serve as information carriers through a process called modulation.

Answer

Electromagnetic waves form lenses through refraction.

Answer

Electromagnetic waves generate images through reflection.

Answer

Electromagnetic waves create rainbows through diffraction.

Question 49

Define diffraction in the context of waves:

Accepted Answer

Diffraction refers to the bending of waves as they encounter an obstacle.

Answer

Diffraction refers to the absorption of waves by a material.

Answer

Diffraction refers to the splitting of waves into two or more waves.

Answer

Diffraction refers to the reflection of waves off a surface.

Question 50

How are the frequency and wavelength of a wave related?

Accepted Answer

Frequency and wavelength exhibit an inverse relationship, meaning as one increases, the other decreases.

Answer

Frequency and wavelength are equal to each other.

Answer

Frequency and wavelength are independent of each other.

Answer

Frequency and wavelength exhibit a direct relationship, meaning as one increases, the other also increases.