Light passes through a narrow slit, and then through a lens and onto a screen. The slit is 20.0 cm from the lens. The screen, when adjusted for a sharp image of the slit, is 15 cm from the lens. What is the focal length of the lens? Express anewer with the appropriate unito.

Light passes through a narrow slit, and then through a lens and onto a screen. The slit is 20.0 cm from the lens. The screen, when adjusted for a sharp image of the slit, is 15 cm from the lens. What is the focal length of the lens? Express anewer with the appropriate unito.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter36: Image Formation

Section: Chapter Questions

Problem 36.41P: The projection lens in a certain slide projector is a single thin lens. A slide 24.0 mm high is to...

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Question

Light passes through a narrow slit, and then through a lens and onto a screen. The slit is 20.0 cm from the lens. The screen, when adjusted for a sharp image of the slit, is 15 cm from the lens. What is the focal length of the lens?
Express
anewer with the appropriate unito.

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