View the step-by-step solution to:

White light with wavelengths between 400 nm and 700 um falls on a diffraction grating with 6000 lines/cm. A screen is 1.0 m from the grating. How...

physics.jpg

I'm getting the wrong answer, here's what I got so far:

dsin???? = nλ

λ = 700nm = 700 x 10^-9m

n = 1

d = .01m / 6000 lines = 1.67 x 10 ^-6m


???? = sin^-1[(nλ)/d] = sin^-1[(1 x 700 x 10^-9) / (1.67 x 10^-6)] = 24.78


Length on screen for first order: (1)tan(24.78) = .46m

.46m x 2 = .92m

physics.jpg

V 1. White light with wavelengths between 400 nm and 700 um falls on a diffraction grating with 6000 lines/cm. A screen is 1.0 m from the grating. How wide does the screen
have to be so that the entire HF] and m=-1 orders appear on it. You cannot use the small
angle approximation for this problem.

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question