The focal length of a convex mirror is obtained by using a convex lens. The following observation are recorded during the experiment-
`{:(“object position”,=5cm),(“Image”,=93.8cm),(“Mirror”,=63.3cm),(“Bench error”,=-0.1cm):}` Then the focal length of mirror will be
A. 7.5 cm
B. 8.4 cm
C. 15.3 cm
D. none of these
`{:(“object position”,=5cm),(“Image”,=93.8cm),(“Mirror”,=63.3cm),(“Bench error”,=-0.1cm):}` Then the focal length of mirror will be
A. 7.5 cm
B. 8.4 cm
C. 15.3 cm
D. none of these
Correct Answer – C