Question

A thin film of polystyrene of refractive index 1.49 is used as a nonreflecting coating for...

A thin film of polystyrene of refractive index 1.49 is used as a nonreflecting coating for Fabulite (strontium titanate) of refractive index 2.409.

What is the minimum thickness of the film required? Assume that the wavelength of the light in air is 550nm .
0 0
Add a comment Improve this question Transcribed image text
✔ Recommended Answer
Answer #1

t= lambda / 4n_poly
t= 550 / 4(1.49)
t= 92.28 nm

Add a comment
Know the answer?
Add Answer to:
A thin film of polystyrene of refractive index 1.49 is used as a nonreflecting coating for...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT