1.

The ray diagram could be correct [CPMT 1988]

A. If \[{{n}_{1}}={{n}_{2}}={{n}_{g}}\]
B. If \[{{n}_{1}}={{n}_{2}}\] and \[{{n}_{1}}<{{n}_{g}}\]
C. If \[{{n}_{1}}={{n}_{2}}\] and \[{{n}_{1}}>{{n}_{g}}\]
D. Under no circumstances
Answer» D. Under no circumstances


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