State whether the following statements are true or false:

Silver is utilised in making mirrors.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept: A spherical mirror is a component of a reflective sphere with a sphere-shaped surface. It is composed of a great deal of incredibly tiny plane mirrors.
We are aware that the back of the glass sheet in the mirrors is painted white in order to reflect light. As a result, the metal used to paint the glass sheet's rear surface must be bright and have a high degree of reflectivity.
Because of its great reflecting qualities, silver is utilised to paint the glass's rear surface for producing mirrors.
Optical mirrors and home mirrors are the two main categories of mirrors, as we all know. The placement of the metal covering on these mirrors makes them distinctive. While optical mirrors have either a silver or an aluminium coating on their front, domestic mirrors have paint applied to the back of the glass.
We should be aware that the silver plating can reflect 95% of the light that strikes it. Silver is preferred over aluminium or tin, which have considerably lesser reflecting capacities, because of this feature. Due to their low emissivity, silver-coated mirrors are employed as primary and secondary mirrors in telescopes.
Hence, the given statement is true.

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