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Author Question: A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the ... (Read 81 times)

abarnes

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on: Jul 28, 2018
A double convex lens has a focal length of 0.10 m. An object 0.05 m high is placed 0.15 m from the lens surface on the principal axis. Sketch a ray diagram and give the characteristics of the image.

Question 2

A diffraction grating with 4000 lines/cm is illuminated by light from the sun. The solar spectrum is spread out on a white wall across the room. At what angle from the center line does blue light (400 nm) appear? At what angle from the center line does red light (650 nm) appear?


raenoj

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Reply #1 on: Jul 28, 2018
Answer to Question 1

Real, inverted, and smaller

Answer to Question 2

9.21, 15.1


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abarnes

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Reply #2 on: Jul 28, 2018
Thank you!


raenoj

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Reply #3 on: Jul 28, 2018
Always glad to help...


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