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10 Comments

  1. From the lesson Inspirational Thoughts - 1

    Tue, 03 Mar 2009 02:38:01 -0000

    a really good one…....................................................................................................................................

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  2. From the lesson The Garden of Heart

    Sun, 01 Mar 2009 17:22:01 -0000

    nice one but its not easy to 4get pasts more u try 2 4get more it hurts…................

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  3. From the trivia question

    The number of d-electrons retained in Fe^{2+} (At. no. of Fe = 26) ion is

    Sat, 28 Feb 2009 05:49:37 -0000

    its not 4d’6 instead it is 3d6 4s0

  4. From the trivia question

    According to Newton’s law of cooling, the rate of cooling of a body is proportional to (\Delta \theta)n, where \Delta \theta is the difference of the temperature of the body and the surroundings, and n is equal to

    Sat, 28 Feb 2009 05:46:13 -0000

    if v check d constant term which involves specific it wil come out 2 be 3 so which ans to tick…............................................

  5. From the trivia question

    If the lattice constant of this semiconductor is decreased, then which of the following is correct?

    (in the adjacent pic: Ec= Condutton band with, Eg= Band gap and Ev= Valence band width)



    Sat, 28 Feb 2009 05:40:38 -0000

    give explaination…...................................................

  6. From the trivia question

    An alpha nucleus of energy \cfrac{1}{2}mv^2 bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to

    Sat, 28 Feb 2009 05:32:55 -0000

    give d procedure. don v need 2 equate max energy to 1/2mv’2.

  7. From the lesson iit jee is the easiest competitive exam

    Fri, 27 Feb 2009 10:15:27 -0000

    THANX U TAUGHT A LIFETIME LESSON…...................

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  8. From the trivia question

    In the nuclear fusion reaction ^2 _1 H + ^3 _1 H \rightarrow ^4 _2 He+n , given that the repulsive potential energy between the two nuclei is Na^+,Ca^{2+},Mg^{2+} the temperature at which the gases must be heated to initiate the reaction is nearly =\operatorname{[Boltzmann's}constant \operatorname{k}= 1.38 * 10^{-23} J/ K]

    Tue, 24 Feb 2009 03:09:07 -0000

    kindly send d answer procedure…........................................

  9. From the trivia question

    In the nuclear fusion reaction ^2 _1 H + ^3 _1 H \rightarrow ^4 _2 He+n , given that the repulsive potential energy between the two nuclei is Na^+,Ca^{2+},Mg^{2+} the temperature at which the gases must be heated to initiate the reaction is nearly =\operatorname{[Boltzmann's}constant \operatorname{k}= 1.38 * 10^{-23} J/ K]

    Tue, 24 Feb 2009 03:09:07 -0000

    kindly send d answer procedure…........................................

  10. From the lesson Strategy to Attempt Assertion-Reason Type questions

    Fri, 20 Feb 2009 07:23:05 -0000

    nice one to score more thanx indeed

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