Recent content by J-Wang

  1. J

    Inner Product and Linear Transformation

    Does it has something to do with the Projection of x on the basis? :D
  2. J

    Inner Product and Linear Transformation

    Homework Statement Let V be a finite-dimensional real inner product space with inner product < , >. Let L:V->R be a linear map. Show that there exists a vector u in V such that L(x) = <x,u> for all x in V. 2. The attempt at a solution It seems really simple but I just can't phrase...
  3. J

    Thin Lens Equation - Hypothesis

    Homework Statement Hi, I am writing a lab report, and I have no idea how to come up with a fitting hypothesis for this lab Purpose: To determine the relationship among the focal length, the image distance, and the object distance of a converging lens.
  4. J

    C=f(Lamda) n=c/v n1sine(theta1) = n2since(theta2)

    Having a test tomorrow, and we are suppose to have these three equations down. Is there any sites where I can test my knowledge of these equations, cause I have no way to see if I have it down or not, since my textbook isn't that helpful. I just need a site that gives me all these questions...
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