The power of a lens is +2 Dioptre. (RBSESolutions.com) What is the focal length of this mirror?
A. 2 m
B. 1 m
C. 0.5 m
D. 0.2 m
Answer:C
The power of a lens is +2 Dioptre. (RBSESolutions.com) What is the focal length of this mirror?
A. 2 m B. 1 m C. 0.5 m D. 0.2 m