Monochromatic Light (λ = 500 Nm) Is Incident on a Soap

question 36

Multiple Choice

Monochromatic light (λ = 500 nm) is incident on a soap bubble (n = 1.4) that is 500-nm thick. Calculate the change of phase of the light that penetrates the front surface, reflects from the second surface, and emerges through the first surface as an angle between 0° and 360°?

• A) 280°
• B) 160°
• C) 220°
• D) 100°
• E) 290°

---

Definitions:

Hardest Tasks

Tasks or challenges that are perceived as extremely difficult or demanding in terms of effort, skill, or resources required.

Delay Gratification

The ability to resist the temptation for an immediate pleasure in favor of a later, often greater, reward.

Need for Achievement

A psychological drive that motivates individuals to pursue and attain goals, often pushing them to succeed in challenging tasks or environments.

Incentive Value

The perceived worth or desirability of a reward or outcome, which motivates behavior directed towards achieving that outcome.