The light from the sun is to be focused by a magnifying glass of power 5 D. It is a biconvex lens made from crown glass with a refractive index of 1.52 at 589 nm, and has a diameter of 10 cm.Calculate the radii of curvature of the two surfaces of the lens (use the thin lens approximation).If the lens is slightly tilted so the collimated rays of the sun make an angle with the optical axis, the focused spot will flare out into a comet shape.Calculate the position factor and shape factor of the lens. If the lens is tilted by 20 degrees, calculate the tangential and sagittal coma of the focused spot and draw a diagram showing these dimensions.

since this question contains multiple parts, I am only solving part a. Please post the reaming…

Answered: The light from the sun is to be focused…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter38: Refraction And Images Formed By Refraction

Section: Chapter Questions

Problem 124PQ

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The light from the sun is to be focused by a magnifying glass of power 5 D. It is a biconvex lens made from crown glass with a refractive index of 1.52 at 589 nm, and has a diameter of 10 cm.

Calculate the radii of curvature of the two surfaces of the lens (use the thin lens approximation).
If the lens is slightly tilted so the collimated rays of the sun make an angle with the optical axis, the focused spot will flare out into a comet shape.
Calculate the position factor and shape factor of the lens. If the lens is tilted by 20 degrees, calculate the tangential and sagittal coma of the focused spot and draw a diagram showing these dimensions.

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