At what position will an object be placed in front of a c...
At what position will an object be placed in front of a concave mirror in order to obtain an image at infinity?
At the pole of the mirror
At the principal focus
at the center of the curvature
Between the principal focus and the center of curvature
Correct answer is B
No explanation has been provided for this answer.
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A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on t...