Q.. When an object is moved 10 cm toward a concave mirror, the real image moves from 20 to 50 cm . Find the radius of curvature of the mirror.?
Answers
Answered by
12
u = - 10 cm
v = - 50 cm
f = ?
1/f = 1/v + 1/u
= 1/- 50 + 1/- 10
= - 6/50
= - 3/25
f = - 25/3
Radius of curvature =
- 25/3 × 2
- 16.7 cm
v = - 50 cm
f = ?
1/f = 1/v + 1/u
= 1/- 50 + 1/- 10
= - 6/50
= - 3/25
f = - 25/3
Radius of curvature =
- 25/3 × 2
- 16.7 cm
Similar questions