An astronomical telescope will typically have different filters to allow the camera in the telescope to capture only specific wavelengths of light that are of interest to the user. Imagine that this telescope is constructed such that the camera is fixed in place and a diffraction grating of 25 slits/m could move laterally 2 m in front of the screen. In order to capture the first order light from an "H-alpha line" (light produced by a star at 656.28 nm), how far laterally would the grating have to be moved from the camera?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the !! Diffraction Grating concept. If you need more !! Diffraction Grating practice, you can also practice !! Diffraction Grating practice problems.
How long does this problem take to solve?
Our expert Physics tutor, Douglas took 7 minutes and 31 seconds to solve this problem. You can follow their steps in the video explanation above.