anonymous
  • anonymous
I don't understand this formula:
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
E = h x f (h -> Planck constant)
anonymous
  • anonymous
why?
anonymous
  • anonymous
which one that you dont understand?

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anonymous
  • anonymous
\( \huge {E=hf=}\frac{ hc }{ \lambda }\)
anonymous
  • anonymous
The formula says, if you have a charged particle, and if that charged particle oscillates at a frequency f, then the energy that the electron would radiate will be in discrete packets of light, called the quanta, and each quanta would have a particular energy given by that relationship..
anonymous
  • anonymous
@deathgrowl , can you explain this formula more? \[E = \frac{ hc }{ \lambda }\] @Mashy , Thank you :) can you give me a question?
anonymous
  • anonymous
what kind of question do you want?
anonymous
  • anonymous
I want a question about this formula
anonymous
  • anonymous
Ok.. if a light of frequency 10^16 Hz, is hitting a surface with a power of 10 watts, find the number of photons hitting that surface per second!
anonymous
  • anonymous
\( \large \bf {f=c/ \lambda }\)
anonymous
  • anonymous
@deathgrowl , what is \[\lambda \] here?
anonymous
  • anonymous
\( \large \bf{ \lambda}\) = wavelength :)
anonymous
  • anonymous
@Mashy : \[E = hf => x = 10^{16} \times (6626068 \times 10^{-34})\]
anonymous
  • anonymous
but I think I made a mistake :(
anonymous
  • anonymous
@deathgrowl , Thank you :)
anonymous
  • anonymous
yea thats wrong :P
anonymous
  • anonymous
so please help
anonymous
  • anonymous
@Mashy , can you solve that question for me?
aaronq
  • aaronq
so you have \(\nu \) (frequency)= \(10^{16}\) Hz, units of Hz=1/s E=\(h\nu\)=\((6.626*10^{-34}J*s)*(10^{16} /s)\) and you have to know that 1 watt= 1 J/s
anonymous
  • anonymous
OH @aaronq ,Thank you very much :) but I have another qustion,I think it seems VERY VERY VERY ... easy ! What is s in \( " (6.626 * 10 * s) " \)
aaronq
  • aaronq
6.626*10^-34 J*s is planck's constant (h)
anonymous
  • anonymous
No @aaronq , i don't know what is "s"
aaronq
  • aaronq
"s" is seconds
anonymous
  • anonymous
Thank you,You helped me very very good ;)
aaronq
  • aaronq
no probs dude!

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