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Problem
Problem
Two coherent sources of intensity ratio
β
2
\beta^2
β
2
interfere. Then, the value of
(
I
max
−
I
min
)
/
(
I
max
+
I
min
)
(I_{\max} - I_{\min}) / (I_{\max} + I_{\min})
(
I
m
a
x
−
I
m
i
n
)
/
(
I
m
a
x
+
I
m
i
n
)
is
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