A source containing a mixture of hydrogen and deuterium atoms emits light at two wavelengths whose mean is 641 nm and whose separation is 0.211 nm. Find the minimum number of lines needed in a diffraction grating that can resolve these lines in the first order.
A source containing a mixture of hydrogen and deuterium atoms emits light at two wavelengths whose mean is 641 nm and whose separation is 0.211 nm. Find the minimum number of lines needed in a diffraction grating that can resolve these lines in the first order.
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Transcribed Image Text:A source containing a mixture of hydrogen and deuterium atoms emits light at two wavelengths whose mean is 641 nm and whose
separation is 0.211 nm. Find the minimum number of lines needed in a diffraction grating that can resolve these lines in the first order.
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