Question

When you immerse a glass test tube in a mixture of acetone & chloroform, the test tube seems to be invisible. Why does this happen?

• A. solution is very dense
• B. glass has less refractive index as that of the solution
• C. glass has more refractive index as that of the solution
• D. glass has same refractive index as that of the solution

Answer 1

The correct option is D

glass has same refractive index as that of the solution

Glass has the same refractive index as that of the solution. Because of the same refractive index between the two medium, the test tube seems invisible.