Quiz
9702 Quick Quiz on Period and Phase Difference
Questions in this quiz (6)
1The 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?
- AA 4.0 s
- BB 4.5 s
- CC 8.0 s
- DD 9.0 s
2A signal has a frequency of 2.0 MHz.
What is the period of the signal?- AA 2 µs
- BB 5 µs
- CC 200 ns
- DD 500 ns
3A 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?
- AA 1.5
- BB 2.5
- CC 3.0
- DD 6.0
4The 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?- AA π/4 rad
- BB π/2 rad
- CC 3π/4 rad
- DD π rad
5Noise 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?- AA 90°
- BB 180°
- CC 270°
- DD 360°
6The diagram shows a standing wave on a string. The standing wave has three nodes N1, N2 and N3.
Which statement is correct?- AA All points on the string vibrate in phase.
- BB All points on the string vibrate with the same amplitude.
- CC Points equidistant from N2 vibrate with the same frequency and in phase.
- DD Points equidistant from N2 vibrate with the same frequency and the same amplitude.
Information
- Description
- Short Quiz on phase difference for AS Level Physics U14 Waves
- Author
- Jeffrey Piggott
- Language
- English
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