Q.

Given below are two statements :
Statement I : If the Brewster’s angle for the light propagating from air to glass is θB . Then the Brewster’s angle for the light propagating from glass to air is π2θB.
Statement II : The Brewster’s angle for the light propagating from glass to air is tan1μg where μg is the refractive index of glass.
In the light of the above statements, choose the correct answer from the options given below :
 

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a

Statement I is true but Statement II is false.

b

Both Statement I and Statement II are false

c

Both Statement I and Statement II are true.

d

Statement I is false but Statement II is true.

answer is C.

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Detailed Solution

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Air → glass
Question Image
 (1) sinθB=μgsinr=μgsin90θBtanθB=μg
glass → Air
Question Image
μgsinθB1=(1)sinr1=sin90θB1cotθB1=μg =tanθB

θB1=π2θB

The Brewster’s angle for the light propagating from glass to air is tan11μg where μg is the refractive index of glass.

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