9702 Quick Quiz on Period and Phase Difference

Question 1 of 6

1

The diagram shows two sinusoidal waveforms.
At time t = 0 the waves are in phase. At the dotted line, t = 18 s.

At which time is the phase difference between the two oscillations ⅛ of a cycle?

Select one of the following:

A 4.0 s
B 4.5 s
C 8.0 s
D 9.0 s

Explanation

Question 2 of 6

1

A signal has a frequency of 2.0 MHz.

What is the period of the signal?

Select one of the following:

A 2 µs
B 5 µs
C 200 ns
D 500 ns

Explanation

Question 3 of 6

1

A displacement-time graph for a transverse wave is shown in the diagram.
The phase difference between X and Y can be expressed as nπ.
What is the value of n?

Select one of the following:

A 1.5
B 2.5
C 3.0
D 6.0

Explanation

Question 4 of 6

1

The frequency of a certain wave is 500 Hz and its speed is 340 ms^–1.

What is the phase difference between the motions of two points on the wave 0.17 m apart?

Select one of the following:

A π/4 rad
B π/2 rad
C 3π/4 rad
D π rad

Explanation

Question 5 of 6

1

Noise reduction headphones actively produce their own sound waves in order to cancel out external sound waves.

A microphone in the headphones receives waves of one frequency. A loudspeaker in the headphones then produces a wave of that frequency but of a different phase.

What is the phase difference between the external sound wave and the wave produced by the loudspeaker in the headphones?

Select one of the following:

A 90°
B 180°
C 270°
D 360°

Explanation

Question 6 of 6

1

The diagram shows a standing wave on a string. The standing wave has three nodes N1, N2 and N3.

Which statement is correct?

Select one of the following:

A All points on the string vibrate in phase.
B All points on the string vibrate with the same amplitude.
C Points equidistant from N2 vibrate with the same frequency and in phase.
D Points equidistant from N2 vibrate with the same frequency and the same amplitude.

	Created by Jeffrey Piggott over 5 years ago

Short Quiz on phase difference for AS Level Physics U14 Waves

9702 Quick Quiz on Period and Phase Difference

9702 Quick Quiz on Period and Phase Difference

Question 1 of 6

The diagram shows two sinusoidal waveforms. At time t = 0 the waves are in phase. At the dotted line, t = 18 s. At which time is the phase difference between the two oscillations ⅛ of a cycle?

Select one of the following:

Explanation

Question 2 of 6

A signal has a frequency of 2.0 MHz. What is the period of the signal?

Select one of the following:

Explanation

Question 3 of 6

A displacement-time graph for a transverse wave is shown in the diagram. The phase difference between X and Y can be expressed as nπ. What is the value of n?

Select one of the following:

Explanation

Question 4 of 6

The frequency of a certain wave is 500 Hz and its speed is 340 ms^–1. What is the phase difference between the motions of two points on the wave 0.17 m apart?

Select one of the following:

Explanation

Question 5 of 6

Select one of the following:

Explanation

Question 6 of 6

The diagram shows a standing wave on a string. The standing wave has three nodes N1, N2 and N3. Which statement is correct?

Select one of the following:

Explanation

The diagram shows two sinusoidal waveforms.
At time t = 0 the waves are in phase. At the dotted line, t = 18 s.

At which time is the phase difference between the two oscillations ⅛ of a cycle?

A signal has a frequency of 2.0 MHz.

What is the period of the signal?

A displacement-time graph for a transverse wave is shown in the diagram.
The phase difference between X and Y can be expressed as nπ.
What is the value of n?

The frequency of a certain wave is 500 Hz and its speed is 340 ms^–1.

What is the phase difference between the motions of two points on the wave 0.17 m apart?

The diagram shows a standing wave on a string. The standing wave has three nodes N1, N2 and N3.

Which statement is correct?