Concept explainers
The minimum thickness for the air layer between two flat glass surfaces. Also, when the glass is to appear bright
Answer to Problem 77GP
Explanation of Solution
Given:
Wavelength,
Formula used:
Dark bands will occur when
The light rays are perpendicular to the plates, the extra path length equals to
Where,
Calculation:
According to the question, the half cycle phase change at the lower surface means that max destructive interference will occur when the thickness
Calculation for destructive interference,
Calculation for constructive interference,
Conclusion: Wavelength for destructive interference is
Chapter 24 Solutions
Physics: Principles with Applications
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