Question

• as you carefully observe the animation, how does the displacement (motion) of the particles in these regions differ?- use the pressure probe to view the difference in pressure between the areas of constructive and destructive interference: ○ pressure in area of destructive interference _____________ ○ pressure in area of constructive interference _____________21 select the laser option, and select the \screen\ option. your screen should look something like this.- identify the regions of constructive interference and destructive interference. label the areas of destructive interference and constructive interference in the image below. please note, the dark patches of the wave do not indicate the absence of light! on the \screen\ however, the dark spots do represent areas of no light. this shows how the laser light would appear on a screen. (i know, its confusing. perhaps black was not the best \trough\ color choice...)

Explanation:

1. For pressure in wave interference: In destructive interference, wave troughs and peaks cancel, leading to low (near ambient) pressure. In constructive interference, wave peaks/ troughs align, creating high pressure.
2. For laser interference labeling: The bright, overlapping (reinforced) regions in the wave pattern are constructive interference; the faint, canceled regions are destructive interference. On the screen, bright spots = constructive, dark spots = destructive.

Answer:

• Pressure in area of destructive interference: Low (close to ambient) pressure
• Pressure in area of constructive interference: High pressure
• Labeling for the laser wave image (top to bottom box):

1. Constructive Interference (bright, reinforced wave region)
2. Destructive Interference (faint, canceled wave region)
3. Constructive Interference (bright, reinforced wave region)