Question

plz help; Its imp plz​

Answer 1

Given :-

Focal length of Image = f = -5 cm

Image distance = v = -7 cm

Height of objects = h⁰ = 2 cm

By Mirror Formula,

1/v + 1/u = 1/f

-1/7 + 1/u = -1/5

1/u = -1/5 + 1/7

1/u = (-7 + 5)/35

1/u = -2/35

u = -35/2 cm

Now, Magnification,

m = -v/u

m = -(-7)/-(35/2)

m = 14/-35

m = -2.5

Hence,

The object will be inverted, real and smaller than image.