A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39 x 10° m, and its mean distance from the earth is 1.50 x 1011 m. The camper is using a converging lens whose focal length is 11.0 cm. (a) What is the area of the sun's image on the paper? (b) If 0.310 W of sunlight pass through the lens, what is the intensity of the sunlight at the paper?

A camper is trying to start a fire by focusing sunlight onto a piece of paper. The diameter of the sun is 1.39 x 10° m, and its mean distance from the earth is 1.50 x 1011 m. The camper is using a converging lens whose focal length is 11.0 cm. (a) What is the area of the sun's image on the paper? (b) If 0.310 W of sunlight pass through the lens, what is the intensity of the sunlight at the paper?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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