Flag Wave Motion> pls help...................................
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pls help......................................................................

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muskan , 4 Years ago
Grade 12
anser 3 Answers
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Parth

Last Activity: 4 Years ago

in this question you’ve to use the concept of the circle of illuminance
A = Angle at which total internal reflection is occurring, in this case, it is given by sinA = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cosA]/2 which gives 0.169281 which is nearly 16.92% or 17 %

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Parth

Last Activity: 4 Years ago

in this question you’ve to use the concept of the circle of illuminance
A = Angle at which total internal reflection is occurring, in this case, it is given by sinA = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cosA]/2 which gives 0.169281 which is nearly 16.92% or 17 %
pls approve

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Arun

Last Activity: 4 Years ago

Dear student
A = Angle at which total internal reflection is occurring, in this case, it is given by sinA = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cosA]/2 which gives 0.169281 which is nearly 16.92%
Hope it helps

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