JEE Advanced 2020 Full Test 7 Paper 1

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Question : 8 of 54

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n number of identical equilateral prisms are kept in contact as shown in the figure. If the deviation through a single prism is δ, then (n,m are integers)

if n=2m, the deviation through the system of n prisms is zero.
if n=2m+1, deviation through the system of n prisms is δ.
if n=2m, the deviation through the system of n prisms is δ.
if n=2m+1 is deviation through the system of n prisms is zero.

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