The ray diagram could be correct [CPMT 1988; KCET 2000] (a) If \( n_{1}=n_{2}=n_{g} \) (b) If \(...

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The ray diagram could be correct [CPMT 1988; KCET 2000]
(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
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