Geometrical OpticsMedium
Question
In parallax method for the determination of focal length of a concave mirror, the object should always be placed :
Options
A.between the focus (F) and the centre of curvature (C) of the mirror ONLY
B.at any point beyond the focus (F) of the mirror
C.beyond the centre of the curvature ( C ) of the mirror ONLY
D.between the pole ( P ) and the focus ( F ) of the concave mirror ONLY
Solution
Image should be real. So object should be placed beyond focus.
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