Question

Ramesh stand 30m from a concave mirror and the focal length is20m
raju stand 30m from a plane mirror. find the distance between Raju and Ramesh plz give the answer as soon as possible with explanation ​

Answer 1

Answer:

by the mirror Formula

$\frac{1}{f} = \frac{1 \: }{u} + \frac{1}{v} \\ \frac{1}{ - 20} = \frac{1}{ - 30} + \frac{1}{v} \\ \frac{1}{v} = \frac{1}{ - 20} + \frac{1}{30}$

$\frac{1}{v} = \frac{ - 3+ 2}{60} \\ \frac{1}{v} = \frac{1}{ - 60} \\ v = - 60 \\ - mean \: that \: the \: image \\ is \: real \:$

in Raju case he is standing in front of a plane mirror show the image size and the object size will be the same so

image size= object size

30 =30

it is positive so we can understand that the image is virtual in nature

the distance between ramesh and the image of of Ramesh is 60-30= 30 m

distance between Raju and he is image is 30+30= 60 m

I have called sir sir said that in the question it mean that we have to find the distance of the object and the image