Magnification of a mirror is +1 .what type of mirror it is? I what does it mean?
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it is a convex mirror..
it sign convention is
u = -ve
v = +ve
f = +ve
M = -[v]/u = magnification formula
M = -[+v]/-u
M= -v/-u
Minus gets cancelled
M= v/u which is positive
Also, as it is give the M = +1 then v=u
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