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Per NCERT NEW CARTESIAN sign convention, what is the sign of OBJECT DISTANCE (u) for an object in front of a mirror?
AAlways positive
BDepends on the mirror type
CAlways zero
DNEGATIVE (because the object is on the LEFT of the pole, measured against the direction of incident light)
Answer & Solution
Correct answer: D. NEGATIVE (because the object is on the LEFT of the pole, measured against the direction of incident light)
Per NCERT §9.2.3 sign convention, u is negative for real objects in front of the mirror.
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