Focal length of plane mirror is
a) At infinity
c) Negative
b) Zero
d) None of these
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Answer:
zero..............hoti he bro
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Step-by-step explanation:
a) At infinity
The focal length of a plane mirror is infinite. When parallel rays fall on a mirror surface, they are brought to a point after reflection. This point is called the focal point and the distance of this point from the center of the mirror is called the focal length of the mirror.
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