Question

What is the lenght if the power
of the convex lens is 2D



plzz answer I will give u branlist ​

Answer 1

Answer:

Power of a lens is -2D, negative sign indicates it is a Concave lens. Focal length (in meters)=1/power of the lens, thus focal length=1/2=0.5m=50cm. Answer: Since, Power P = -2 D, Focal length f = 100/(-2) = - 50 cm.

Answer 2

$\bf \huge\color{red}{Answer}$

Power of a lens is -2D, negative sign indicates it is a Concave lens. Focal length (in meters)=1/power of the lens, thus focal length=1/2=0.5m=50cm. Answer: Since, Power P = -2 D, Focal length f = 100/(-2) = - 50 cm.