Recent content by Zolo

  1. Z

    Polarization of light after being totally reflected

    Homework Statement A circularly polarized light hit the boundary between 2 regions at 45 degree and is totally reflected. What is the polarization state of the reflected beam? Homework Equations The Attempt at a Solution Since both s and p component are totally reflected...
  2. Z

    Graduate Phase shift of reflected light wave

    When a light wave move from a medium with lower refractive index to medium of higher refractive index, at the boundary, the reflected light wave will undergo a phase shift of ∏ rad. Compared to the transmitted light, the reflected light lead by ∏ rad or lag by ∏ rad?
  3. Z

    Why Do Different Methods Yield Different Results for Simple Harmonic Motion?

    Can you explain or show why it so when it is linearly related to time?
  4. Z

    Why Do Different Methods Yield Different Results for Simple Harmonic Motion?

    If u consider a body moving with constant acceleration(constant rate of change of velocity with time), then we know that average velocity across any time interval=(V2-V1)/2 Thus, the motion can be regarded as constant velocity with the average velocity In this system, rate of change of...
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    Why Do Different Methods Yield Different Results for Simple Harmonic Motion?

    There is a horizontal spring-mass system lie on top of a frictionless table. let m=mass k=spring constant x=displacement from equilibrium position A=amplitude T=period By using conventional way, time taken to complete a quarter of cycle=T/4=(∏/2)√(m/k) consider another way of doing...
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    Calculating Final Speed of a Car with Many Jumpers

    So the increase in velocity when nth people jump off= mv/[M+m(k-n)]? Then, the final V=mv/[M+m(k-1)]+mv/[M+m(k-2)]+...+mv/M? But the answer is V=mv/[M+m(k)]+mv/[M+m(k-1)]+...+mv/[M+m]...
  7. Z

    Calculating Final Speed of a Car with Many Jumpers

    In the reference frame of the car,each people jump off will give an impulse of mv to the car? final momentum of car= initial momentum of car plus all these impulse?
  8. Z

    Calculating Final Speed of a Car with Many Jumpers

    Homework Statement A number of k people standing on a stationary car. These people jump off with a velocity of v relative to the car one by one. Assume these people jump to the direction, what is the final speed V of the car.Homework Equations initial momentum=final momentum The Attempt at a...