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  1. R

    Application of properties of the light

    Can anyone help me here pleaseeeeeeeeeeeeeeee..:(
  2. R

    Diffraction Grating wavelengths

    this is not my homework..It was my homework...but i got it wrong, unfortunately my teacher did not write the correct answer....as my exam is approching...i am preparing for it. I am doing this course through ilc, ilc tutors are not available right now because of the break, thats why i wanted to...
  3. R

    Elementary particle charge

    Can someone tell me if the answer above is correct...please....
  4. R

    Elementary particle charge

    so for b....q/m=ratio of pi-, do i sud in 1.6x10^-19 for q??...so 1.6x10^-19/8.6x10^8C/kg which gives me m=1.86x10^-28kg......doesn;t seem right to me:(.....HELP!!!!!
  5. R

    Application of properties of the light

    Can anyone help me please....
  6. R

    Diffraction Grating wavelengths

    can anyone help me ...please..
  7. R

    Elementary particle charge

    the charge-to-mass ratio for alt-p- is 8.6x10*C/kg
  8. R

    Elementary particle charge

    The charge to-mass ratio of the pi^- particle was determined in the example above.The charge-to mass ratio of the pi^- particle was determined. The charge-to-mas ratio of the electron is 1.76x10^11C/kg. a) predict which particle has a greater mass-the electron, or the particle. b) use the value...
  9. R

    Elementary particle charge

    well...this is it.....this is what the exact question is in the book. What i was thinking was q/m is the ratio which is 1.76x10^C/kg, i can use this to find m by pluging into q/m=the ratio, therefore q/ratio = m......but i m confused...is this m what the part b wants???
  10. R

    Diffraction Grating wavelengths

    light wavelengths of 520nm and 630nm passes through a diffraction grating that contains 6000lines/cm. a) sketch a diagram of the image produced from m=0 to m=2. label the order of each fringe.b) calculate the angles for the first and second-order maxima that would appear on the screen. c) What...
  11. R

    Elementary particle charge

    Elementary particle(ANYONE PLZ HELP ME WITH THIS Q) The charge-to mass ratio of the pi^- particle was determined. The charge-to-mas ratio of the electron is 1.76x10^11C/kg. a) predict which particle has a greater mass-the electron, or the particle. b) use the value of the elmentary charge to...
  12. R

    Application of properties of the light

    but we see all the rainbow colors in soap bubble because thickness of the bubble varies.....the bottom of the bubble is thicker......therefore we see red at the bottom/??
  13. R

    Specialy theory of relativity

    i was replying to someone else..when i said "i know" lol....i finally get it ....:)
  14. R

    Application of properties of the light

    if the thickness of the soap bubble is much smaller than the wavelength of light, the result is destructive interference (dark color). the thickness required to produce constructive interference for red is larger than that required for blue. ....
  15. R

    Specialy theory of relativity

    righttt........i think i said i know to somthing else....
  16. R

    Application of properties of the light

    which of the following colours would you expect to see near the bottom of a soap bubble, red or blue?....i think red is... because it has longer wavelength?
  17. R

    Application of properties of the light

    you find two unlabelled diffraction gratings in your lab. from purchase records, you know that one grating has 500lines/cm, while the other has 10000lines/cm Given the following equipement, describe how you would determine which is the grating with 10 000lines/cm: red laser, detection screen...
  18. R

    Specialy theory of relativity

    to is same while t increases....?
  19. R

    Diffraction Grating

    for part b) sintheta=mlmbda/d....do i use both wavelengths? or a difference of the wavelengths?....confused:S
  20. R

    Specialy theory of relativity

    I know. but in general ..what happens? when the speed of the spacecraft is increased. will the earth based observer's measurement be more beats per min or less than b4? and what about astronaut, will she experience the frequency of her pulse to be more or less than b4?
  21. R

    Specialy theory of relativity

    t=to/(sqrt1-v^2/c^2)
  22. R

    Specialy theory of relativity

    so...the astronaut will observe ...her pulse being slowed down?....:Sstill confused
  23. R

    Elementary particle

    I always thought it was the other way around
  24. R

    Elementary particle

    The charge-to mass ratio of the \pi-particle was determined. The charge-to-mas ratio of the electron is 1.76x10^11C/kg. a) predict which particle has a greater mass-the electron, or the \pi-particle. b) use the value of the elmentary charge to calculate the mass of the \pi-particle in kg...
  25. R

    Elementary particle

    so the faster it is ...shorter the wavelength ...the faster moving electron will be helpful to probe the nucleus...
  26. R

    Elementary particle

    Use the de Broglie equation to explain which is better probe of the contents of the nucleus--a fast-moving electron, or a slow-moving electron. Can someone simplify what the qestion is asking for?
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