Question

Constants I Periodic Table Helium atoms emit light at several wavelengths. Light from a helium lamp illuminates a diffraction grating and is observed on a screen 50.00 cm behind the grating. The emission at wavelength 501.5 nm creates a first-order bright fringe 21.90 cm from the central maximum.
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Answer #1

This question is based on the concept of

1. diffraction equations

2. estimation of significant figures

Following is the detailed solution of the given question

Solution tan-1 0.21.9 o.5 sine Sn 23. 653 Now agan dsme ma Thanks! -6

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