The linear magnification produced by a spherical mirror is +3. Analyze this value and state the
(i) type of mirror and
(ii) position of the object with respect to the pole of the mirror.
Draw ray diagram to show the formation of image in this case.
Given: The linear magnification produced by a spherical mirror is +3
Answer:
Since m is positive, we can that the image is virtual and erect.
Since m > 1, we can say that image is enlarged(magnified).
(i) Type of mirror:
Concave mirror as it the only mirror that can form a magnified virtual image.
(ii) Position of the object with respect to the pole of the mirror:
Only when the object is between the pole and focus of a concave mirror, the image is virtual and erect.
Ray diagram:
Here AB is the object and A'B' is the image.
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