Vegetable oil and Pyrex glass have almost exactly the same indices of refraction-the speed of light is the same in both materials. If you submerge a clear Pyrex dish in vegetable oil,
A) the Pyrex dish will be virtually invisible because no light will reflect from its surfaces.
B) the surfaces of the Pyrex will appear mirror-like-reflecting light perfectly as the result of total internal reflection.
C) the Pyrex dish will act as a lens and you will see highly distorted images of objects beyond the dish.
D) you will see a pattern of beautiful rainbow colors in the glass as dispersion separates white light.

Question

Quizplus · Accepted Answer

When two materials have the same index of refraction, light passes from one to the other without bending or reflecting at the interface. This means there is no refraction or reflection to make the Pyrex dish visible, making it virtually invisible in the vegetable oil.

Vegetable Oil and Pyrex Glass Have Almost Exactly the Same