PS:7.3:Wave Interactions

Reflection occurs only with sound waves.

• True

• False

All reflected waves appear to be standing still.

• True

• False

The angle of incidence is always greater than the angle of reflection.

• True

• False

Diffraction is more pronounced with sound waves than light waves.

• True

• False

Wave interference occurs whenever waves enter a new medium.

• True

• False

Wave interference occurs only when a wave is reflected.

• True

• False

Light waves refract when they pass from air to water.

• True

• False

Interference occurs only when the crests of one wave overlap with the troughs of another wave

• True

• False

A standing wave occurs when a wave is reflected straight back from an obstacle.

• True

• False

Wave interference always changes the speed of a wave.

• True

• False