Waves: Properties, Types, and Applications

Question 1

When a wave encounters a boundary between two different mediums, which property remains constant?

Accepted Answer

Frequency

Answer

Wavelength

Answer

Speed

Answer

Amplitude

Question 2

For long-distance communication, which type of wave is commonly used?

Accepted Answer

Radio wave

Answer

Microwave

Answer

Infrared wave

Answer

Ultraviolet wave

Question 3

What is the relationship between amplitude and energy in a wave?

Accepted Answer

Amplitude is directly proportional to energy

Answer

Amplitude is inversely proportional to energy

Answer

There is no relationship between amplitude and energy

Answer

The relationship depends on the wave's medium

Question 4

What is the Doppler effect?

Accepted Answer

The change in frequency of a wave due to the relative motion between source and observer

Answer

The reflection of a wave off a surface

Answer

The absorption of a wave by a medium

Answer

The diffraction of a wave around an obstacle

Question 5

What is the purpose of a diffraction grating?

Accepted Answer

To disperse light into its component wavelengths

Answer

To focus light

Answer

To reflect light

Answer

To absorb light

Question 6

Which of the following is a characteristic of a transverse wave?

Accepted Answer

Oscillation perpendicular to the direction of propagation

Answer

Oscillation parallel to the direction of propagation

Answer

No oscillation

Answer

Random oscillation

Question 7

The wavelength of a wave is equal to the:

Accepted Answer

Distance between two consecutive crests or troughs

Answer

Distance between a crest and a trough

Answer

Amplitude of the wave

Answer

Period of the wave

Question 8

Which of the following is NOT a fundamental property of a wave?

Accepted Answer

Temperature

Answer

Amplitude

Answer

Wavelength

Answer

Frequency

Question 9

The SI unit of wavelength is the:

Accepted Answer

Meter (m)

Answer

Hertz (Hz)

Answer

Second (s)

Answer

Joule (J)

Question 10

Which of these is NOT a characteristic of waves?

Accepted Answer

Momentum

Answer

Frequency

Answer

Wavelength

Question 11

The amplitude of a wave represents its:

Accepted Answer

Displacement from the equilibrium position

Answer

Energy

Answer

Intensity

Answer

Frequency

Question 12

When two waves of equal amplitude interfere constructively, the resulting amplitude is:

Accepted Answer

Double the original amplitude

Answer

Half the original amplitude

Answer

Zero

Answer

Equal to the original amplitude

Question 13

Which of the following is a unique characteristic of electromagnetic waves?

Accepted Answer

Travel at the speed of light in a vacuum

Answer

Require a medium to propagate

Answer

Are longitudinal waves

Answer

Carry both energy and momentum

Question 14

The Doppler effect is primarily caused by relative motion between a wave:

Accepted Answer

Source and an observer

Answer

Source and a medium

Answer

Observer and a medium

Answer

Source and a detector

Question 15

Which of the following is **not** a characteristic of a wave?

Accepted Answer

Density

Answer

Amplitude

Answer

Frequency

Answer

Velocity

Question 16

The distance between two consecutive crests or troughs of a wave is known as its:

Accepted Answer

Wavelength

Answer

Amplitude

Answer

Frequency

Answer

Period

Question 17

A wave with a high frequency has a:

Accepted Answer

Short wavelength

Answer

High amplitude

Answer

Low speed

Answer

Long period

Question 18

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

Accepted Answer

Transverse

Answer

Longitudinal

Answer

Surface

Answer

Standing

Question 19

When a wave changes direction upon entering a new medium, it is said to undergo:

Accepted Answer

Refraction

Answer

Reflection

Answer

Diffraction

Answer

Interference

Question 20

The phenomenon where two or more waves combine to create a new wave pattern is known as:

Accepted Answer

Superposition

Answer

Resonance

Answer

Polarization

Answer

Doppler effect

Question 21

The Doppler effect is primarily associated with a change in:

Accepted Answer

Wave frequency

Answer

Wave velocity

Answer

Wave amplitude

Answer

Wave wavelength

Question 22

In a ripple tank experiment, which of the following can be used to determine the wavelength of a wave?

Accepted Answer

Measuring the distance between crests

Answer

Measuring the time between crests

Answer

Measuring the frequency of the wave

Answer

Measuring the amplitude of the wave

Question 23

Which of the following is NOT considered a fundamental property of waves?

Accepted Answer

Density

Answer

Amplitude

Answer

Frequency

Answer

Wavelength

Question 24

A wave with a greater amplitude generally has:

Accepted Answer

Increased energy

Answer

Reduced energy

Answer

Shorter wavelength

Answer

Lower frequency

Question 25

In a transverse wave, the particles of the medium primarily vibrate:

Accepted Answer

Perpendicular to the direction of wave propagation

Answer

Parallel to the direction of wave propagation

Answer

In the same direction as the wave propagation

Answer

Randomly in all directions

Question 26

The unit of measurement for wave frequency is:

Accepted Answer

Hertz

Answer

Metres

Answer

Seconds

Answer

Newtons

Question 27

Wavelength refers to the:

Accepted Answer

Distance between two adjacent crests or troughs

Answer

Time taken for one complete wave cycle

Answer

Number of waves passing a point per second

Answer

Energy carried by the wave

Question 28

Which of the following factors does NOT influence the speed of sound waves in air?

Accepted Answer

Frequency

Answer

Temperature

Answer

Density

Answer

Pressure

Question 29

The Doppler effect is primarily observed when:

Accepted Answer

A wave source and observer move relative to each other

Answer

Two waves interfere with each other

Answer

A wave is reflected from a surface

Answer

A wave is diffracted around an obstacle

Question 30

Which of the following properties is not commonly associated with waves?

Accepted Answer

Density

Answer

Amplitude

Answer

Wavelength

Answer

Frequency

Question 31

A wave with a large amplitude generally possesses:

Accepted Answer

High energy

Answer

Low energy

Answer

High velocity

Answer

Low velocity

Question 32

The relationship between wavelength and frequency for a wave is such that:

Accepted Answer

Wavelength is inversely proportional to frequency

Answer

Wavelength is directly proportional to frequency

Answer

Wavelength is independent of frequency

Answer

Frequency is directly proportional to wavelength

Question 33

Which of the following types of waves is a transverse wave?

Accepted Answer

Light wave

Answer

Sound wave

Answer

Water wave

Answer

Seismic wave

Question 34

The speed of a wave is primarily determined by:

Accepted Answer

Wavelength and medium properties

Answer

Frequency only

Answer

Amplitude and frequency

Answer

Amplitude only

Question 35

When a wave transitions from a medium with a lower refractive index to a medium with a higher refractive index, its wavelength:

Accepted Answer

Decreases

Answer

Increases

Answer

Remains the same

Answer

Becomes infinite

Question 36

Which of the following phenomena is a result of wave interference?

Accepted Answer

Beats

Answer

Doppler effect

Answer

Diffraction

Answer

Polarization

Question 37

The principle of superposition for waves states that:

Accepted Answer

When two waves overlap, the resulting displacement at a particular point is the algebraic sum of the individual displacements at that point

Answer

When two waves overlap, they cancel each other out

Answer

When two waves overlap, they create a new wave with a different frequency

Answer

When two waves overlap, they create a standing wave

Question 38

Which of the following is NOT a characteristic of waves?

Accepted Answer

Mass

Answer

Frequency

Answer

Wavelength

Answer

Amplitude

Question 39

The amplitude of a wave is:

Accepted Answer

The maximum displacement of a point on the wave from its rest position

Answer

The number of waves passing a point in one second

Answer

The distance between two consecutive crests

Question 40

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

Accepted Answer

Require a medium for propagation

Answer

Have electric and magnetic fields

Answer

Travel at the speed of light

Answer

Are transverse waves

Question 41

The relationship between wavelength (λ), frequency (f), and speed (v) of a wave can be expressed as:

Accepted Answer

v = fλ

Answer

λ = v/f

Answer

λ = f/v

Answer

f = v/λ

Question 42

Which of the following is an example of a longitudinal wave?

Accepted Answer

Sound wave

Answer

Radio wave

Answer

Water wave

Answer

Light wave

Question 43

The phenomenon where two or more waves combine to produce a wave with a larger amplitude is called:

Accepted Answer

Constructive interference

Answer

Polarization

Answer

Destructive interference

Answer

Diffraction

Question 44

A wave is travelling through a medium. Which of the following properties of the wave will remain constant as it travels from one medium to another?

Accepted Answer

Frequency

Answer

Amplitude

Answer

Wavelength

Question 45

A sound wave is travelling through air. What is the direction of vibration of the air particles relative to the direction of wave propagation?

Accepted Answer

Parallel

Answer

Circular

Answer

Random

Answer

Perpendicular

Question 46

Two waves interfere constructively. What is the relationship between their amplitudes?

Accepted Answer

The amplitudes add together.

Answer

The amplitudes subtract from each other.

Answer

The amplitudes remain unchanged.

Answer

The amplitudes are multiplied together.

Question 47

A wave diffracts as it passes through an opening. What happens to the wavefront after it passes through the opening?

Accepted Answer

It spreads out.

Answer

It becomes narrower.

Answer

It remains unchanged.

Answer

It reflects back.

Question 48

A wave is reflected from a fixed boundary. What happens to the phase of the reflected wave?

Accepted Answer

It changes by 180 degrees.

Answer

It changes by 90 degrees.

Answer

It changes by 360 degrees.

Answer

It remains unchanged.

Question 49

A wave has a wavelength of 2 meters and a frequency of 5 Hz. What is the speed of the wave?

Accepted Answer

10 m/s

Answer

0.4 m/s

Answer

2.5 m/s

Answer

20 m/s

Question 50

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

Accepted Answer

They require a medium to travel.

Answer

They exhibit wave-particle duality.

Answer

They can be reflected and refracted.

Answer

They travel at the speed of light in a vacuum.

Question 51

What is the phenomenon that causes a wave to bend around a corner?

Accepted Answer

Diffraction

Answer

Reflection

Answer

Refraction

Answer

Interference

Question 52

A light wave travels from air into water. What happens to the speed of the light wave?

Accepted Answer

It decreases.

Answer

It increases.

Answer

It remains the same.