English, asked by gursimransingh3531, 5 months ago

find the focal length of a lens of power -2.0D lens what the of lens is this

Answers

Answered by JindJaan01

Answer:

The power of the lens given is -2D. It has negative sign, which means that it is a concave lens. Now, the formula for the power is P = 1/f. Therefore, focal length =-50cm.

Answered by 04gangesh

Answer:

this is a convex lens

Explanation:

its focal lenth will be 1/2

= 0.5

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find the focal length of a lens of power -2.0D lens what the of lens is this​

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find the focal length of a lens of power -2.0D lens what the of lens is this