When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a plane sheet of glass. This implies that the liquid must have refractive index
Text Solution
Verified by ExpertsThe correct answer is:
A
: According to lens maker ’ s formula
where 
is the refractive index of the material of the lens and 
is the refractive index of the liquid in which lens is dipped.
As the biconvex lens dipped in a liquid acts as a plane sheet of glass, therefore
or 
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