Question

a concave mirror of focal length f produce an image of an object what would be the object distance for which the image is reall​

Answer 1

Answer:

ANSWER

From the mirror equation we have,

v

1

+

u

1

=

f

1

=

−F

1

(Following sign convention)

Also magnification =

−u

−v

=n (Since image is real and inverted)

⟹v=nu

Using this in mirror equation gives,

u=−

n

(n+1)F

According to sign convention, this is the negative of the distance between object and mirror.

Thus distance between object and mirror =

n

(n+1)

F