Answer :

Angular magnification is the ratio of angle subtended by the image when using glasses to the image formed when not using glasses. “Angular magnification is the ratio of the angle subtended at the eye by the image formed by an optical instrument to that subtended at the eye by the object when not viewed through the instrument”


When the object is placed at angular focal length, the magnification for simple microscope is given as



and when object distance from lens, u < , then



Hence option C is correct.

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