Question

the linear magnification produced by a spherical mirror is -1/3. Analyse this value and state the 1)type of mirror 2) position of the object with respect to the pole of the mirror. draw a ray diagram to show the formation of the image in this case.

Answer 1

A convex mirror always forms an erect image . So, it cannot be a convex mirror .

As , the linear magnification  =  -1/3

1) The type of mirror is concave mirror .

2) When the object is placed beyond the centre of curvature , the image formed is between the focus and centre of curvature .

The Ray Diagram is shown in picture -

It is clearly visible that -

AB is the object .

C``D`` is the diminished and inverted image .

So, the linear magnification of the image is -1/3 .

The - sign indicates an inverted image .

The value less than 1 indicates a diminished image .

Answer 2

Explanation:

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