A lens with two convex surfaces, both with radii of curvature of 0.25 meters, is used to focus light. If the lens is made of crown glass, it would have an index of refraction for red (656 nm) light of 1.509 and for blue light (486 nm) of 1.517. What happens when it is used to make an image of a distant source of white light? Pick those that apply. The red light focuses closer to the lens than the blue light. The blue light focuses closer to the lens than the red light. The red light falls in a cone outside the blue light as it the light converges to a focus, so when blue is in focus there is a fuzzy red ring around it. When the red light is in focus it is surrounded by a blue halo.

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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A lens with two convex surfaces, both with radii of curvature of 0.25 meters, is used to focus light. If the lens is
made of crown glass, it would have an index of refraction for red (656 nm) light of 1.509 and for blue light (486 nm)
of 1.517 What happens when it is used to make an image of a distant source of white light?
Pick those that apply
The red light focuses closer to the lens than the blue light.
The blue light focuses closer to the lens than the red light.
The red light falls in a cone outside the blue light as it the light converges to a focus, so when blue is in focus
there is a fuzzy red ring around it.
When the red light is in focus it is surrounded by a blue halo.
Transcribed Image Text:A lens with two convex surfaces, both with radii of curvature of 0.25 meters, is used to focus light. If the lens is made of crown glass, it would have an index of refraction for red (656 nm) light of 1.509 and for blue light (486 nm) of 1.517 What happens when it is used to make an image of a distant source of white light? Pick those that apply The red light focuses closer to the lens than the blue light. The blue light focuses closer to the lens than the red light. The red light falls in a cone outside the blue light as it the light converges to a focus, so when blue is in focus there is a fuzzy red ring around it. When the red light is in focus it is surrounded by a blue halo.
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