U5.2 – Superposition, Coherence & Stationary Waves

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Superposition, Coherence and Stationary Waves

1 / 12

Select the correct pair of conditions necessary for sources of waves to be coherent.

2 / 12

Which condition is not necessary for the production of a stationary wave?

3 / 12

The image above shows two wave fronts before, during and after meeting. What is this an example of?

4 / 12

Two coherent, in phase waves have a path difference of 3λ. What kind of interference occurs?

5 / 12

An experiment is set up as shown above, with two speakers connected to the same signal generator and switched on. At what points is the path difference an integer?

6 / 12

Two points on a wave have a phase difference of 1080°, are they in phase?

7 / 12

Two points on a wave have a phase difference of 7π radians, are they in phase?

8 / 12

On a stationary wave, where is there maximum vibration.

9 / 12

What is the wavelength of the fifth harmonic of a stationary wave on a string of length 4m fixed at both ends?

10 / 12

The wavelength of a standing wave on a string fixed at both ends is 35 cm at the sixth harmonic, what is the full length of the string?

11 / 12

Identify the stationary wave pattern for a string at the fourth harmonic.

12 / 12

A stationary wave at the first harmonic is created on a 40 cm length of string with mass 1.2 kg. The full length of the string is 65 cm and is under tension of 3 N. Calculate the frequency.

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