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Questions about intensity

  1. Mar 5, 2015 #1
    I think basic definition of intensity is power by area.
    How intensity is square of the amplitude?
    How intensity is energy density times speed of thing?
    How in a radiation of EM wave,
    Half of the intensity is provided by elec.field and other by magnetic field?
  2. jcsd
  3. Mar 6, 2015 #2
    NCERT example 8.5 right?
  4. Mar 6, 2015 #3
    Yeah, I got all the answers of that by some searching.
    Can you answer this one,
    In wave optics
    taking size of light source =s and distance from 2 slits S,
    How s/S <= λ/d
    for the fringe formation to take place?
    Last edited: Mar 6, 2015
  5. Mar 6, 2015 #4
    Size of light source??
  6. Mar 6, 2015 #5
    As in NCERT example 10.4 (d) .
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