Doppler effect Definition and 505 Threads

  1. A

    Understanding the Doppler Effect in Physics: Explained and Solved Questions

    this is from my physics assignment... after pulling half of my hair, i still couldn't figure it out... my answer for part a) is greater and lower and part b) is same and same... not sure tho... thx 4. Part a) A sister has a ball which she throws toward her brother. The ball is thrown...
  2. P

    Explaining the Doppler Effect on Photons: Consistency with Wave Theory

    Consider a situation in which a light source is stationary with respect to an observer, A. This source emits n photons of frequency f, each of energy E = hf, towards A. Hence, A will be able to detect the energy loss in the source, which is E = nhf. Now, this light source is moving with...
  3. D

    Calculating Frequency Using Doppler Effect Formula

    Using the doppler effect: formula: f'=f/(1-V_s/V_0) A train traveling toward you at 120k/h. the train blows its 400Hz whistle. take the speed of sound to be 340m/s. what's the freq? my developments so far... 400Hz/(1-(.340/.343ms) how do i solve the setup is wrong?
  4. B

    What is the Formula for the Doppler Effect?

    Hi All... Who knows the formula of the Dopler´s Effect??Please someone help me.This is a little curiosity that I Have.Regards. BlueIce88
  5. T

    Determining Wave Direction using Doppler Effect

    I have a question regarding waves which has been bugging me for a while: "You are given a traveling wave with an equation of the form cos(ax+/-bt) where x and t are position and time as usual, a and b are positive numbers. Explain how you would physically determine the direction that the...
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