Physical Science 17.3

Multiple Choice

The property of waves bending as they pass through a narrow opening is called

• reflection

• refraction

• diffraction

• destructive interference

Multiple Choice

When does refraction of a wave occur?

• The wave cannot enter the new medium

• The wave enters a new medium at any angle

• The wave enters a new medium at any angle except 90 degrees

• Part of the wave enters a new medium and part is reflected

Multiple Choice

A 6-meter rope is tied to a hook in the wall. Which of the following wavelengths can produce a standing wave?

• 1.5 m

• 2.5 m

• 3.5 m

• 4.5 m

Multiple Choice

The amount of diffraction of a wave increases as the size of the obstacle causing the diffraction decreases

• true

• false