pls help......................................................................
muskan , 4 Years ago
Grade 12
Wave Motion> pls help....................................
3 AnswersParth
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 sin(A) = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cos(A)]/2 which gives 0.169281 which is nearly 16.92% or 17 %
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 sin(A) = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cos(A)]/2 which gives 0.169281 which is nearly 16.92% or 17 %
pls approve
Arun
Last Activity: 4 Years ago
Dear student
A = Angle at which total internal reflection is occurring, in this case, it is given by sin(A) = 1/mu. mu = 4/3;
A = 48.5903 degrees ;
in this case percentage of light escaped = [1 – cos(A)]/2 which gives 0.169281 which is nearly 16.92%
Hope it helps
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