Wave Interference and Superposition Quiz

What is the resultant displacement when two waves with amplitudes of 2m and 1m interact?

• 3m

• 2m

• 1m

• 4m

How is phase difference expressed in terms of wavelength?

• As a fraction of the wavelength times 180°

• As a fraction of the wavelength times 270°

• As a fraction of the wavelength times 360°

• As a fraction of the wavelength times 90°

What does it mean for two waves to be coherent?

• They have the same amplitude

• They have the same frequency

• They have the same speed

• They have a constant phase difference

In the double slit experiment, what condition must be met for constructive interference to occur?

• The path difference must be zero

• The path difference must be a quarter of the wavelength

• The path difference must be half the wavelength

• The path difference must be a multiple of the wavelength

What is the path difference if the distance from slit one to point P is 6 cm and from slit two to point P is 10 cm?

• 4 cm

• 2 cm

• 8 cm

• 6 cm

What does the integer 'n' represent in the expression for path difference?

• The amplitude of the wave

• The frequency of the wave

• The speed of the wave

• The order of the interference pattern

For destructive interference, what must the phase difference be?

• 270 degrees

• 90 degrees

• 180 degrees

• 0 degrees

What is the path difference condition for destructive interference?

• n times the wavelength plus a quarter

• n minus a half times the wavelength

• n plus a half times the wavelength

• n times the wavelength

If the wavelength is 1 cm, what is the path difference for n=1 in destructive interference?

• 0.5 cm

• 1.0 cm

• 2.0 cm

• 1.5 cm

What happens when a peak meets a trough in wave interference?

• Constructive interference

• Destructive interference

• No interference

• Amplified interference