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- The angle of deviation through a prism is minimum when (A) Incident ray and emergent ray are symmetric to the prism (B) The refracted
The angle of deviation through a prism is minimum when 
(A) Incident ray and emergent ray are symmetric to the prism (B) The refracted ray inside the prism becomes parallel to its base (C) Angle of incidence is equal to that of the angle of emergence (D) When angle of emergence is double the angle of incidence Choose the correct answer from the options given below :
Option: 1 Statements (A), (B) and (C) are true
Option: 2 Only statement (D) is true
Option: 3 Statements (B) and (C) are true
Option: 4 Only statements (A) and (B) are true
Answers (1)
As shown in the above figure
The angle of deviation through a prism is minimum when
(A) Incident ray and emergent ray are symmetric to the prism
(B) The refracted ray inside the prism becomes parallel to its base
i.e
(C) Angle of incidence is equal to that of the angle of emergence
i.e i=e
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