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Q.

Is it true that mirrors are found in spectacles?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
The reflecting surfaces are mirrors, and the refracting bodies are lenses. In the case of lenses, light travels through them; in the case of a mirror, it reflects back in the same plane. So, there is no usage of mirrors in eyewear. Concave lenses are used to correct myopia when creating eyeglasses. Myopia is the inability to view distant objects clearly. Hence we can say lenses are used to make spectacles, not mirrors.
The corrected statement is that lenses are found in spectacles.
 
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Is it true that mirrors are found in spectacles?