Question

if the height of the object is 6 cm and the focal length is 30 cm and the distance of object from the concave mirror is 45 cm find the height nature and position of image​

Answer 1

apply mirror formula for this

i.e

1/f=1/v+1/u

ok, now you can solve it by putting appropriate value

Answer 2

use mirror formulae and find out

its so easy