1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Finding the apeture

  1. Sep 5, 2007 #1
    1. The problem statement, all variables and given/known data

    What apeture is required to give 1-arcsec resolution for a wavelength of 500 nm(visible)

    2. Relevant equations

    theta=wavelength/d ; d is the size of the apeture

    3. The attempt at a solution
    I'm assuming when they are asking for the apeture , they are asking for the size of the apeture.

    theta=wavelength/d => d=wavelength/theta =

    I converted 1 arc second to 5*10^-6 radian

    d=500*10^-9 m/5*10^-6= .1 m
  2. jcsd
  3. Sep 5, 2007 #2


    User Avatar
    Homework Helper

    Looks right to me.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook