NEETPhysicsGeometrical OpticsMCQ+4 / −1
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
- Aequal to that of glass
- Bless than one
- Cgreater than that of glass
- Dless than that of glass
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