Question

The back side of a plane mirror contains
(a) gold coating
(b) silver coating
(c) aluminium coating
(d) copper coating

Answer 1

Answer:

b. Silver coating

Hope it helps!!!!!

Answer 2

Answer:

(b) The backside of a plane mirror contains a silver coating.

Explanation:

• Take a thin piece of glass and cut it in half. Silver one side of the mirror to make it opaque. On top of it, a small layer of red lead oxide is applied, which protects the mirror from silvering.
• A polished silver metal block reflects practically all of the light that strikes it and does not transmit or absorb any of the rays. The silver metal's smooth and polished surface is readily damaged and might become rough. Ordinary mirrors are manufactured by putting a small layer of silver metal or mercury on one side of a plane glass sheet and protecting it with a coat of red paint.