Question

the height of the image when the 2cm object kept on the C of a concave mirror is​

Answer 1

Answer:

$\sf{-2cm}$

Given:

$\sf{ho \:= \:2cm}$

$\sf{Position \:of \:object \:= \:at \:'C' \:}$

Assumption:

Let object distance be C. Then the image distance will also be 'C' . Because in case of concave mirror, If the object is kept at C , the image also forms at 'C'.

Explanation:

$\sf{{\dfrac{hi}{ho}}={\dfrac{-v}{u}}}$

$\sf{{\dfrac{hi}{2}}={\dfrac{-C}{C}}}$

$\sf{{hi}={{2}\times{-1cm}}}$

$\sf{hi \:= \:-2cm}$