When a biconvex lens of glass having a refractive index of 1.47 is dipped in a liquid, it acts as a plain sheet of glass. This implies that the liquid must have a refractive index,
A. less than one
B. less than that of glass
C. greater than that of glass
D. equal to that of glass
Answer:D
When a biconvex lens of glass having a refractive index of 1.47 is dipped in a liquid, it acts as a plain sheet of glass. This implies that the liquid must have a refractive index,
A. less than one B. less than that of glass C. greater than that of glass D. equal to that of glass