The energy must be reflected and returned through a single 30 prism, – McqOptions

MCQOPTIONS

1.	The energy must be reflected and returned through a single 30 prism, so that it passes through the prism in both directions is called __________
A.	Cornu mounting
B.	Mono mounting
C.	Littrow mounting
D.	Trio mounting
Answer» D. Trio mounting

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