A) 20 cm
B) 30 cm
C) 60 cm
D) 80 cm
Correct Answer: A
Solution :
Focal length of the system (concave mirror) \[F=\frac{R}{2\,\mu }\]\[=\frac{30}{2\times 1.5}\]=10 cm In order to have a real image of the same size of the object, object must be placed at centre of curvature u = (2f).You need to login to perform this action.
You will be redirected in
3 sec