Question

what is the lens formula? Define terms in it.​

Answer 1

Answer:

Explanation:

A lens formula may be defined as the formula which gives the relationship between the distance of image (v), distance of object (u), and the focal length (f) of the lens. It may be written as:

Principal Axis Concave Lens

      Where,   v   =   Distance of image from optical centre of lens

                    u   =   Distance of object from optical centre of lens

      and         f   =   Focal length of lens

      The lens formula is applicable both in convex lenses and concave lenses.

Answer 2

Answer:

A lens formula may be defined as the formula which gives the relationship between the distance of image (v), distance of object (u), and the focal length (f) of the lens.

Explanation:

1/f=1/v + 1/u

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