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Question
Choose the correct option.
Select the WRONG statement.
Options
Smaller angle of prism is recommended for greater angular dispersion.
Right-angled isosceles glass prism is commonly used for total internal reflection.
Angle of deviation is practically constant for thin prisms.
For emergent rays to be possible from the second refracting surface, certain minimum angle of incidence is necessary from the first surface.
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Solution
Smaller angle of prism is recommended for greater angular dispersion.
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