Question

using mirror formula(without diagram s),find the position nature and magnification oh image formed by a concave mirror for different positions of object

Answer 1

Use the following mirror equation

1/f = 1/u + 1/v

where

f - focal length

u - object distance

v - image distance

now, we can keep 'f' as fixed and keep changing (both increase and decrease) 'u' in equal intervals we can record the values of 'v'.

Let's say that

f = 10cm

and

u = 15cm

in the first case, so we get

v = 30cm

and so on..