What is the angle of the third order inside the water casing

Reference no: EM13514108

a diffraction grating 1.5 mm wide produces the fifth order pie/4 with light wavelength 650nm on the screen 80 mm away. What is the total number of lines on the grating? Suppose a transparent, rectangular case of water is placed 60 mm to the right of the diffraction grating. What is the angle of the third order inside the water casing?

Reference no: EM13514108

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