Question

At what angle will a blue light of wavelength 510-nm produce a 3rd order maximum when...

At what angle will a blue light of wavelength 510-nm produce a 3rd order maximum when falling on a grating whose slits are 1.35*10^-5 m apart?

How many slits per mm does this grating have?

Draw a diagram indicating the center (zero order) and 1st order fringes.

On the same diagram, indicate the location of the 1st order fringes if the incident wavelength corresponds to red light.

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Answer #1

e bommel a (3) ($10 у 10-9m) 1133 30 x16 6-$1132 Gso degaees cl linespen mele meo ist Cucvelength ht -as 635 nm zes light 620

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