Samveel Ansari posted an Question
September 05, 2020 • 13:48 pm 30 points
  • IIT JAM
  • Physics (PH)

Why the answer for this question is option (d) .......give explanation plz!!

why the answer for this question is option (D) .......give explanation plz!!

2 Answer(s) Answer Now
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    Chandra prakash Best Answer

    see attachment...and in second page , wavefunction given ..try to understand..

    cropped4109799351763649619.jpg
    cropped1063649012774582144.jpg
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    if you have any questions plzz ask

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    if you don't understand let me know

  • comment-profile-img>
    Chandra prakash best-answer

    dear , yes you are absolutely right becoz it's symmetric infinite potential well so in that case ground state wave function represented by cosine .... I'll attach file ..it will be helpfull

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    see my another attachment

  • comment-profile-img>
    Somnath

    Dear student answer of this question should be option a not option d.

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    it will not be option A sir, bcoz total length is 2L.

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    Sorry dear,I have not noticed that the boundaries are at -L and L.You are right total length of the1D box is 2L. In that case given answer option d is correct because the wave fanction have to be zero at the boundaries(at x=-L and x=L).This condition satisfied for option a and option d.Now since the length of the box is 2L the normalization constant is √(1/L).So answer is option d.

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