Find how many lines are etched on the grating surface

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Reference no: EM13660426

The third order diffracted beam from a Helium Neon laser is found at an angle of 58.7 degree from the zero order maximum. Find how many lines per cm are etched on the grating surface?

Reference no: EM13660426

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Find how many lines are etched on the grating surface : The third order diffracted beam from a Helium Neon laser is found at an angle of 58.7 degree from the zero order maximum. Find how many lines per cm are etched on the grating surface

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