Question

A concave mirror of radius of curvature 20cm
produced an inverted image 3 times the size of
an object placed of the mirror and perpendicular to the axis. Calculate the position of the object and image.

Answer 1

Hope it may help you.

Answer 2

Answer:

u=13.3cm

v=39.99cm

Explanation:

f=r/2

20/2= 10cm

h1=h0

h1=3h

using magnification formula(m) =h1/h0=v/u

3h0/ho=v/u

v=3u

1/f=1/v+1/u

1/10=1/3u+1/u

1/10=4/3u

40=3u

u=13.3cm

v=3u

v=3(13.3)

v=39.99cm