A plane mirror is made up of:

a few metre thick glass plate

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a few mm thick glass plate

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a few cm thick glass plate

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none of these

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Solution

The correct option is B a few mm thick glass plate
A plane mirror is made from a few mm thick glass plate. The front part is highly polished and the back part is silvered.

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A plane mirror is made up of:

The correct option is B a few mm thick glass plateA plane mirror is made from a few mm thick glass plate. The front part is highly polished and the back part is silvered.

The correct option is B a few mm thick glass plate
A plane mirror is made from a few mm thick glass plate. The front part is highly polished and the back part is silvered.