A grating has exactly 8000 lines uniformly spaced over 258


A grating has exactly 8000 lines uniformly spaced over 2.58 cm and is illuminated by light from a mercury vapor discharge lamp. What is the expected angle for the third-order maximum of the green line (lambda = 546 nm)?

=____deg

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Physics: A grating has exactly 8000 lines uniformly spaced over 258
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