What is the area of the sun''s image on the paper

Reference no: EM13263229

A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39 × 109 m, and its mean distance from the earth is 1.50 × 1011 m. The camper is using a converging lens whose focal length is 14.9 cm.

(a) What is the area of the sun's image on the paper?

(b) If 0.467 W of sunlight pass through the lens, what is the intensity of the sunlight at the paper?

Reference no: EM13263229

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