Question

4. Seema obtained a magnification of one with a concave mirror of focal length 10cm. What is the objects distance​

Answer 1

Answer:

It should be more than R

Greater than 20

Explanation:

Answer 2

Answer:

M = -v/u

1 = -v / u

-v = u -----(1)

mirror formula ,

1/f = 1/v - 1/u

1/10 = u - v / uv

1/10 = - 2v/-v²

-v² = - 20v

v = 20 cm

mark brainliest

mark brainliest