(Answered) 1 what is the meaning of each term in the grating equation

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1. What is the meaning of each term in the grating equation, m(lambda) = dsin(theta_m)?

2. If a grating has a ruling of 600 lines/mm, what is d, the spacing between slits in nm (nanometers)?

3. Calculate all of the possible values of theta_m for light of wavelength 400 nm and of wavelength 700 nm using such a grating. (Remember that sin(theta_m) is less than or equal to 1 and 1 nm = 10^-9 m).

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