Question

explain why a test tube immersed at a certain angle in a tumbler of water appears to have a mirror surface for a certain veiwing position

Answer 1

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Answer 2

Answer:

1. The surface aur the test tube separates water and air.
2. As light tries to enter air in the test tube(rarer medium),it undergoes total internal reflection bouncing back to water from the surface of the test tube giving it a shiny mirror like surface.