Question

An object of size 2 cm is placed at a distance of 50 cm from a MIRROR. Its real image of 2 cm is formed. Find the focal length of the MIRROR and the type of mirror. Draw a suitable any diagram for the given problem.

Answer 1

Answer:

It's a PLANE MIRROR

Explanation:

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Answer 2

Answer:

$height \: of \: object = 2cm \\ u = - 50 \\ height \: of \: image = 2cm \\ m = \frac{hi}{ho} \\ m = ( - )1$

mirror used is concave

Explanation:

focal length is

$- 50cm$

as, there is a property that whenever image is of same height as of object then it must be placed at C ...

$u = - 50 \\ f = \frac{u}{2} = - \frac{50}{2} \\f = - 25cm$

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