Which of the following mirrors is used in shopping malls for security purposes?
A
Concave mirror
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B
Convex mirror
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C
Plane mirror
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D
Converging mirror
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Solution
The correct option is B Convex mirror A convex mirror is used for security purposes in shopping malls because of its wider field of view. For the same purpose, neither a concave mirror nor a plane mirror is suitable because of the narrower field of view.