Recent content by alchemist7

  1. A

    Undergrad How Do You Distinguish Between Interference and Diffraction in Wave Experiments?

    interference vs diffraction ?? given a question with two or more slits , how to determine if it is interference or diffraction?
    • alchemist7
    • Thread
    • Diffraction Interference
    • Replies: 1
    • Forum: Optics
  2. A

    Undergrad Understanding Phase Shift in Wave Light

    phase shift in wave light?? when doing reflecton/refraction/transmission of wave light exercise,we must take phase shift into account. but in what situation there is a π phase shift ? or other phase shift? i cannot apply this well! help~
    • alchemist7
    • Thread
    • Light Phase Phase shift Shift Wave
    • Replies: 2
    • Forum: Optics
  3. A

    Undergrad What factors affect the coherence of waves?

    I do understand the definition that their initial phase different is not constant. but i just cannot imagine what kind of wave has changing initial phase. isn't initial phase the phase at the time 0? how can it change?
  4. A

    Is the Amplitude Coefficient of Reflection Always 0 at 90 Degrees?

    At what angle of incidence is amplitude coefficient of reflection parallel to the incidence plane 0? my solution is that by Fresnell's equation, r//=tan(i-i`)/tan(i+i`)=0, i=i`,i=90.so for whatever surface,angle of incidence should be 90. is it correct? different from the answer!