Question

what are the sign convention for spherical lenses​

Answer 1

Answer:

Here's Your Answer

Explanation:

• The sign convention of spherical lenses are: All distance are measured from the optical centre of the lens. The distance measured in the same direction as that of incident light are taken as positive and the distance measured against the direction of incident light are taken as negative.

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Answer 2

Answer:

The sign convention of spherical lenses are: All distance are measured from the optical centre of the lens. The distance measured in the same direction as that of incident light are taken as positive and the distance measured against the direction of incident light are taken as negative.

Explanation:

●Focal length of Convex Lens is positive.

●Focal length of Concave Lens is negative.

●Since object is always in front of the lens, object distance is always negative.

●If a real image is formed, image is formed on right side, so image distance is positive.

See the attached picture to understand properly

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