Question

Explain Cartesian sign convention in case of refraction through lens.​

Answer 1

Answer:

According to the new Cartesian sign convention for the refraction of light through the concave and convex lens: ... Distances measured in the direction opposite to the direction of incident light are considered negative. Distances measured in the same direction as the incident light are considered positive.

Explanation:

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Answer 2

Answer:

According to the sign convention, a convex lens focal length is positive, whereas a concave lens focal length is negative. ... According to the new Cartesian sign convention for the refraction of light through the concave and convex lens: All distances are measured from the optical centre of the lens.

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