A beam of white light is incident normally on a grating with 1,440 lines. per cm. The grating separates the light into its component colors. What is the angular separation of the first order red light (650 nm) and the second order blue light(450 nm) in degree? Enter a number with two digits behind the decimal point.

A beam of white light is incident normally on a grating with 1,440 lines. per cm. The grating separates the light into its component colors. What is the angular separation of the first order red light (650 nm) and the second order blue light(450 nm) in degree? Enter a number with two digits behind the decimal point.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 70P: If a microscope can accept light from objects at angles as large as =70 , what is the smallest...

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If a microscope can accept light from objects at angles as large as =70 , what is the smallest structure that can be resolved when illuminated with light of wavelength 500 nm and (a) the specimen is in air? (b) When the specimen is immersed in oil, with index of refraction of 1.52?
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A He-Ne gas laser which produces monochromatic light of a known wavelength ? =6.35 ? 10^−7 ? is used to calibrate a reflection grating in a spectroscope. The first-orderdiffraction line is found at an angle of 22 degrees to the incident beam. How many lines per meter are there on the grating?