AIPMT PRELIMS2012Physics-Optics
AIPMT PRELIMS 2012 Physics Refraction MCQ Question
Type: MCQ-conceptual-Medium-Class 12
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
A
less than that of glass
B
equal to that of glass
C
less than one
D
greater than that of glass
Correct Answer
Option B
Detailed Explanation
For the lens to act as a plane sheet, the refractive index of the liquid must be equal to that of the glass, i.e., 1.47.
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