Wave Properties - exam practice

Two points on a progressive wave have a phase difference of $\frac{\pi }{6}$rad.

The speed of the wave is 340 m s⁻¹

What is the frequency of the wave when the minimum distance between the two points is 0.12 m?

A progressive wave travels along a rope in the direction M to N.

X marks a point on the rope.

The wave has a frequency of 5.0 Hz, a wavelength of 1.0 m and an amplitude of 0.20 m.

Where will X be after 0.15 s?

Which statement is notcorrect for ultrasound and X-rays?

What is the phase difference between two points 0.16 m apart on a progressive sound wave of frequency 256 Hz?

speed of sound = 330 m s^–1

A wave of frequency 15 Hz travels at 24 m s^–1 through a medium.

What is the phase difference between two points 2 m apart?

A sonar transmitter on a ship produces pulses of sound waves.

Each pulse of sound waves contains 12 complete oscillations.

The frequency of these waves is 8.0 kHz and the speed of sound in seawater is 1.5 × 10³ m s^–1.

What is the length of one pulse in seawater?

Which gives the regions of the electromagnetic spectrum in order of increasing wavelength?

Which of the following statements is/are correct about electromagnetic waves?

1 - They can be plane polarised.

2 - They can be refracted and diffracted.

3 - They have the same speed in a vacuum and in glass.

The waves emitted from two sources are coherent.

Which quantity must be constant for these emitted waves?

A wave has a frequency of 5 GHz.

What is the period of the wave?