Question
Question: An object 1cm tall is placed 4cm in front of a mirror. In order to produce an upright image of 3cm h...
An object 1cm tall is placed 4cm in front of a mirror. In order to produce an upright image of 3cm height one needs a –
A
Convex mirror of radius of curvature 12cm
B
Concave mirror of radius of curvature 12cm
C
Concave mirror of radius of curvature 4cm
D
Plane mirror of height 12cm
Answer
Concave mirror of radius of curvature 12cm
Explanation
Solution
f = – 6
f = – 6
so R = 2f = – 12 cm