a) What happens to the center spot as you slowly rotate the replica diffraction grating about...

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Physics

a) What happens to the center spot as you slowly rotate thereplica diffraction grating about its geometrical center? (Rotatehere means to make the plane of the grating no longer perpendicularto the laser beam.)

b) What happens to the spots for n =1 and the spots for n = 2 asthe grating is rotated?

c) Will you be able to observe the bright spots for n =1 and n =2 if you spin the grating 90 ÌŠ while keeping the plane of thegrating perpendicular to the laser beam? (In other words what oncewas the side of the grating, make it the bottom.)

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Answer of aWhen the replica diffraction grating is rotated about itsgeometrical centre the centre spot is also rotated in the samedirection with same angle with respect to normal    See Answer
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