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kazuaaa
@kazuaaa
November 2023
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bonjour j’aimerais bien de l’aide !!(exercice en entier)
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Bonjour,
1a. λ=c/ν
1b. v=c/lambda=(3 x 10^8)/[580 x 10^(-9)]
=5,17 x 10^(14) Hz = 517 THz (T veut dire téra : 10^12)
2a. DeltaE = hc/lambda avec c = 3 x 10^8 m/s
= (6,63 x 10^-34)x(3x10^8)]/[580 x 10^(-9)]
= 3,429 x 10^(-19) J
2b. E = (6.63 * 10-34) * ((3.00* 108)/ (580 * 10 9))
= 3.43 * 10-19J
2c. en eV : DeltaE= [3,429 x 10^(-19)]/(1,602 x 10^(-19)]
= 2,14 eV
J’espère t’avoir aider !! :)
1 votes
Thanks 1
kazuaaa
merci beaucoup !
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Bonjour,1a. λ=c/ν
1b. v=c/lambda=(3 x 10^8)/[580 x 10^(-9)]
=5,17 x 10^(14) Hz = 517 THz (T veut dire téra : 10^12)
2a. DeltaE = hc/lambda avec c = 3 x 10^8 m/s
= (6,63 x 10^-34)x(3x10^8)]/[580 x 10^(-9)]
= 3,429 x 10^(-19) J
2b. E = (6.63 * 10-34) * ((3.00* 108)/ (580 * 10 9))
= 3.43 * 10-19J
2c. en eV : DeltaE= [3,429 x 10^(-19)]/(1,602 x 10^(-19)]
= 2,14 eV
J’espère t’avoir aider !! :)