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For a concave mirrorr, if virtual image ...

For a concave mirrorr, if virtual image is formed, the graph between `m` and `u` is of the form

A

B

C

D

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The correct Answer is:
b
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For a concave mirrorr, if real image is formed the graph between (1)/(u) and (1)/(v) is of the form

For a convex lens, if real image is formed the graph between (u+v) and u or v is as follows

When does a concave mirror form a virtual image ?

Can a concave mirror form a virtual image of same size as the object?

An object is placed in front of a mirror. Arrange the following steps in sequential order to determine the nature of the mirror. (A) Check whether the image formed is virtual or real. (B) Check whether the virtual image formed is dimished, magnified or same size as that of the object. (C) If the image formed is real, the mirror used is concave. (D) If a magnified vritual image is formed, the mirror is concave, if a dimished virtual image is formed, the morror is convex and if size of the image is equal to the size of the object, plane mirror is used.

The graph between u and v for a convex mirrorr is

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