Diffraction Grating - all visible light?

  • #1
24
0

Homework Statement


Find the smallest grating spacing that lets you see the entire visible spectrum.
400nm to 700nm comprises the visible light spectrum.
no other information is given.

Homework Equations


nλ=d sin θ

The Attempt at a Solution


I am not sure how to start as all i have been given is a spectrum of wavelengths...?
 

Answers and Replies

  • #2
24
0
Well, apparently its 700nm. And 1400 nm for the second order.
 
  • #3
413
72
What is the maximum angle where a wavelength can be observed?
 

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