   Chapter 27, Problem 74PE

Chapter
Section
Textbook Problem

A film of soapy water ( n = 1.33 ) on top of a plastic cutting board has a thickness of 233 nm. What color is most strongly reflected if it is illuminated perpendicular to its surface?

To determine

Wavelength and color of reflected light

Explanation

Given info:

Thickness of the soapy water, t=233nm

Refractive index of water, n=1.33

Formula used:

Thickness of the film producing destructive interference is calculated by the formula

t=λ2n

Here,

λ is the wavelength of the reflected light

n is the refractive index

t is the thickness of the film producing interference

Calculation:

The soapy water film is on the top of a plastic cutting board, which has different media than the incoming light, thus the most strongly reflected light occur from the first destructive interference

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started 