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.
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter25: Optical Instruments
Section: Chapter Questions
Problem 13P: An individual is nearsighted; his near point is 18.0 cm and his far point is 50.0 cm. (a) What lens...
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