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Posted: **Sat Jul 02, 2022 7:07 pm**

$B A Diffraction Grating Has 7 000 Lines Per Centimeter When The Grating Is Illuminated Normally With A Monochromatic 1$: B A Diffraction Grating Has 7 000 Lines Per Centimeter When The Grating Is Illuminated Normally With A Monochromatic 1 (83.05 KiB) Viewed 27 times

(b) A diffraction grating has 7,000 lines per centimeter. When the grating is illuminated normally with a monochromatic light, the second order spectral line is found at 62°. Find i. wavelength of the light ii. third order maximum (3 marks)