Concept explainers
Thickness of plastic.
Answer to Problem 13P
Explanation of Solution
Given info:
The
Refractive index of plastic,
Formula used:
Calculation:
For the centre of screen to go from light to dark there must be a phase difference between two waves. It is equal to one-half of wavelength.
According to the question, optical path length is index of refractiontimesphysical path distance.So, phase difference requirement results from optical path difference will be:
Solve for
Conclusion: Thickness of plastic is
Chapter 24 Solutions
Physics: Principles with Applications
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