What is the total number of lines on the grating

Reference no: EM13514166

A diffraction grating 1.5 mm wide produces the 5th order at 45 degrees with light of wavelength 650 nm on a screen 80 mm away.

(A) What is the total number of lines on the grating?

(B) Suppose a transparent rectangular case of water is placed 60 mm to the right of the diffraction grating.

Reference no: EM13514166

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