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# Solution - Derive the Mathematical Relation Between Refractive Indices N1 and N2 of Two Radii and Radius of Curvature R for Refraction at a Convex Spherical Surface. - Lensmaker's Formula

ConceptLensmaker's Formula

#### Question

(i) Derive the mathematical relation between refractive indices n1 and n2 of two radii and radius of curvature R for refraction at a convex spherical surface. Consider the object to be a point since lying on the principle axis in rarer medium of refractive index n1 and a real image formed in the denser medium of refractive index n2. Hence, derive lens maker's formula.

(ii) Light from a point source in air falls on a convex spherical glass surface of refractive index 1.5 and radius of curvature 20 cm. The distance of light source from the glass surface is 100 cm. At what position is the image formed?

#### Solution

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#### APPEARS IN

2015-2016 (March) All India Set 2 C
Question 24.1 | 5 marks

#### Reference Material

Solution for question: Derive the Mathematical Relation Between Refractive Indices N1 and N2 of Two Radii and Radius of Curvature R for Refraction at a Convex Spherical Surface. concept: Lensmaker's Formula. For the courses CBSE (Arts), CBSE (Commerce), CBSE (Science)
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