If you have two electromagnetic waves of identical frequency overlap in space and interfere; if the irradiance of one beam is 10 times that of the other and is +/4 radians. What is the resultant interference irradiance? ANS: 15.47 times the irradiance of the weaker beam

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Full working needed! (I have seen the answer to this same question on the internet multiple times but would need someone to provide a handwritten solution with brief explanation as that is more understandable to me + along with where the formulas used come from) thank you!:)

2.
If you have two electromagnetic waves of identical frequency overlap in space and
interfere; if the irradiance of one beam is 10 times that of the other and 8 is π/4 radians.
What is the resultant interference irradiance?
ANS: 15.47 times the irradiance of the weaker beam
Transcribed Image Text:2. If you have two electromagnetic waves of identical frequency overlap in space and interfere; if the irradiance of one beam is 10 times that of the other and 8 is π/4 radians. What is the resultant interference irradiance? ANS: 15.47 times the irradiance of the weaker beam
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