Question

6 principal maxima are observed in the diffraction pattern due to a diffraction grating. Calculate the number of lines per cm in the grating if the wavelength of the light is 5000 Å

22 Jan 2021
Answer :
Word Count : 197

To calculate the number of lines per centimeter in the diffraction grating, we can use the grating equation:

\[ d \sin(\theta) = m \lambda \]

where:
- \( d \) is the spacing between adjacent lines on the diffraction grating,
- \( \theta \) is the angle ______ __________ ________ __________ __________ __________ ______ _____ _______ ____.
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