Onion epidermal cells act like transmission diffraction gratings when monochromatic laser light is incident upon them. The transverse width of the cell is analogous to the slit spacing (or separation) of a diffraction grating. An experiment using a 650 nm red laser produces the interference pattern shown below on a screen 1 m away from the onion cells. The distance between the second order maxima is indicated. Estimate the width of the onion cell 4.3 cm

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
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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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Onion epidermal cells act like transmission diffraction gratings when monochromatic laser
light is incident upon them. The transverse width of the cell is analogous to the slit spacing
(or separation) of a diffraction grating. An experiment using a 650 nm red laser produces
the interference pattern shown below on a screen 1 m away from the onion cells. The
distance between the second order maxima is indicated. Estimate the width of the onion cell
4.3 cm
Transcribed Image Text:Onion epidermal cells act like transmission diffraction gratings when monochromatic laser light is incident upon them. The transverse width of the cell is analogous to the slit spacing (or separation) of a diffraction grating. An experiment using a 650 nm red laser produces the interference pattern shown below on a screen 1 m away from the onion cells. The distance between the second order maxima is indicated. Estimate the width of the onion cell 4.3 cm
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