Question

An object is placed in front of a convex mirror at a distance of 50
cm
. A plane mirror is introduced covering the lower half of the convex mirror. When the distance between the object and the plane mirror is 30
cm
, it found that there is no parallax between the image formed by the two mirrors. What is the radius of curvature of the convex mirror?

Answer 1

Explanation:

the distance between object and plane mirror is 30cm i.e, distance between plane mirror and convex mirror is 20cm so the image distance

for convex mirror is 10cm

for convex mirror , u=−50 ; v=+10

let f be focal length

v

1

+

u

1

=

f

10

1

−

50

1

=

f

1

f=

4

50

radius=f×2

radius=25cm

please mark me as brainliest