Question

f=20cm, magnification Negative one, u=45cm, V=? It is a spherical mirror​

Answer 1

Answer:

v = 36 cm

- 0.8=m

Step-by-step explanation:

Since magnification is negative image is real.

Using mirror formula,

1/v+1/u=1/f

1/v = 1/f - 1/u

v=uf/u-f

v=20 × 45 ÷ 20 - 45

v = 900÷25

v = 36 cm

In case you need,

Magnification:-

-v ÷ u = m

- 36 ÷ 45 = m

- 0.8 = m

Hope it helps............