Question

An equiconvex lens has power P it is cut into two symmetrical halves by a plane containing the principal axis. The power of one part will be :

• A. 0
• B. $\frac{ P}{ 2}$
• C. $\frac{P }{4 }$
• D. P

Answer 1

Answer: (D)

P

Answer 2

Focal length do not change $\to$ Power do not change