What is the role of the phase change upon reflection in thin film interference?
Practice Questions
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Q1
What is the role of the phase change upon reflection in thin film interference?
It enhances constructive interference
It enhances destructive interference
It has no effect
It changes the wavelength
A phase change of π (or half a wavelength) occurs upon reflection from a medium of higher refractive index, affecting the interference pattern.
Questions & Step-by-step Solutions
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Q
Q: What is the role of the phase change upon reflection in thin film interference?
Solution: A phase change of π (or half a wavelength) occurs upon reflection from a medium of higher refractive index, affecting the interference pattern.