Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Two coherent waves of amplitudes and interfere at a point.
PHYSICS · Multi-part · A Level · Physics · Waves · Waves
Problem
Two coherent waves of amplitudes
A
A
A
and
2
A
2A
2
A
interfere at a point. (a) Derive an expression for the resultant intensity
I
I
I
in terms of
A
A
A
and the phase difference
θ
\theta
θ
between the waves. (b) For what value of
θ
\theta
θ
will the intensity be minimum?
Related theory
Wave Superposition
Superposition and interference of waves
Coherent and incoherent addition of waves
Wave Optics
Interference
Waves
Browse the problem library