ou are standing 2.0 m from a 150-W lightbulb. You may want to review Pages 893 - 894). Part A If the pupil of your eye is a circle 5.0 mm in diameter, how much energy enters your eye per second? (Assume that 5.0% of the lightbulb's power is convert Express your answer using two significant figures. ? E = Submit Reguest Answer • Part B Repeat part A for the case of a 1.0-mm-diameter laser beam with a power of 0.30 mW. Express your answer using two significant figures. E =

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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You are standing 2.0 m from a 150-W lightbulb. You may want to review
(Pages 893 - 894).
Part A
If the pupil of your eye is a circle 5.0 mm in diameter, how much energy enters your eye per second? (Assume that 5.0% of the lightbulb's power is converted to light.)
Express your answer using two significant figures.
V ΑΣφ.
?
E =
HJ
Submit
Request Answer
Part B
Repeat part A for the case of a 1.0-mm-diameter laser beam with a power of 0.30 mW.
Express your answer using two significant figures.
ΑΣφ.
?
E =
HJ
Submit
Request Answer
Provide Feedback
Transcribed Image Text:You are standing 2.0 m from a 150-W lightbulb. You may want to review (Pages 893 - 894). Part A If the pupil of your eye is a circle 5.0 mm in diameter, how much energy enters your eye per second? (Assume that 5.0% of the lightbulb's power is converted to light.) Express your answer using two significant figures. V ΑΣφ. ? E = HJ Submit Request Answer Part B Repeat part A for the case of a 1.0-mm-diameter laser beam with a power of 0.30 mW. Express your answer using two significant figures. ΑΣφ. ? E = HJ Submit Request Answer Provide Feedback
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