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Q.

Is it true that convex mirrors are used in street lights?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
Convex mirrors are divergent. The street lights employ a convex mirror because then they can form an image of objects spread over a wide area. When the object is placed at infinity, the virtual image is formed at the focus, which is erect and highly diminished. However, a concave mirror lacks that quality.
  
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