• What causes dispersion?

    Updated: 2012-09-30 09:27:32
    A wave travels through a (homogeneous) medium at a given velocity, the velocity depends on the frequency of the energy.... why?

  • What is the charge of weak interaction?

    Updated: 2012-09-30 08:08:45
    The strong interaction has color ''charge'',the electromagnetic interaction has electric charge,the gravity interaction has mass ''charge'',then what is the charge in weak interaction? Each...

  • Lorentz force – An IIT-JEE 2012 Multiple Correct Answer(s) Type Question

    Updated: 2012-09-06 05:49:00
    : Physicsplus The Physics Site for Success Pages Home About IIT-JEE AIPMT AIEEE Links to Questions AIEEE Questions AIPMT Questions IIT-JEE Questions Kerala Entrance KEAM Questions Thursday , September 06, 2012 Lorentz force An IIT-JEE 2012 Multiple Correct Answer(s Type Question Making the simple complicated is commonplace making the complicated simple , awesomely simple , that’s creativity . 8221 Charles Mingus IIT-JEE Multiple Correct Answer(s Type Questions are designed to have four choices A B C and D out of which ONE or MORE are correct . The following question appeared in IIT-JEE 2012 question paper . The question is meant for checking your understanding of Lorentz . forces Consider the motion of a positive point charge in a region where there are simultaneous uniform electric and

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