Excited potassium atoms emit deep-violet light at wavelengths 404.4 nm and 404.7 nm. Suppose light from a potassium lamp passes through a diffraction grating that has 880 slits per millimeter. Part A How far behind the grating must a viewing screen be placed so that the two first-order fringes are separated by 1.0 mm? Express your answer with the appropriate units. Α L = 2.5 Submit m Previous Answers Request Answer ? × Incorrect; Try Again; 2 attempts remaining
Excited potassium atoms emit deep-violet light at wavelengths 404.4 nm and 404.7 nm. Suppose light from a potassium lamp passes through a diffraction grating that has 880 slits per millimeter. Part A How far behind the grating must a viewing screen be placed so that the two first-order fringes are separated by 1.0 mm? Express your answer with the appropriate units. Α L = 2.5 Submit m Previous Answers Request Answer ? × Incorrect; Try Again; 2 attempts remaining
University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter3: Interference
Section: Chapter Questions
Problem 63AP: A hydrogen gas discharge lamp emits visible light at four wavelengths, =410 , 434, 486, and 656 nm....
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Transcribed Image Text:Excited potassium atoms emit deep-violet light at
wavelengths 404.4 nm and 404.7 nm. Suppose
light from a potassium lamp passes through a
diffraction grating that has 880 slits per millimeter.
Part A
How far behind the grating must a viewing screen be placed so that the two first-order fringes are separated by 1.0 mm?
Express your answer with the appropriate units.
Α
L = 2.5
Submit
m
Previous Answers Request Answer
?
× Incorrect; Try Again; 2 attempts remaining
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