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Raghu wants to make a lens. Which formula he has to follow ? Write the formula and explain the terms in it.

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Raghu wants to make a lens. Which formula he has to follow ? Write the formula and explain the terms in it.

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Len's maker's formula 1/f = (n-1) [1/R1 - 1/R2]

R1, R2 – Radii of curvature 

n – Refractive index;

f – Focal length

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