Power of the lens is,
P=f1=(μ−1)(R11−R21)⇒P=(1.5−1)(0.21−−0.21)=0.5×10⇒P=+5D
A biconvex lens has radii of curvature 20cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is:
Held on 30 Apr 2022 · Verified 9 Jul 2026.
+20D
+5D
infinity
+2D
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