Articles
Register
Sign In
Search
siazzle
@siazzle
January 2021
1
66
Report
Bonjour, pourriez-vous m’aider à répondre à ces questions s’il vous plaît ?
Merci
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms and service
You must agree before submitting.
Send
Lista de comentários
scoladan
Verified answer
Bonjour,
a) échographie : onde sonore (onde mécanique)
mobile : onde électromagnétique
b) ΔE = hν
h constante de Planck ≈ 6,63.10⁻³⁴ m².kg.s⁻¹ ou J.s
ν fréquence en Hz
ΔE = |E₀ - E₁| = |-5,14 + 3,03| = 2,11 eV
soit 2,11 x 1,60.10⁻¹⁹ J = 3,376.10⁻¹⁹ J
⇒ ν = ΔE/h
soit ν = 3,376.10⁻¹⁹/6,63.10⁻³⁴ ≈ 5.10¹⁴ Hz
Cette fréquence correspond a une longueur d'onde de :
λ = c/ν = 3.10⁸/5.10¹⁴ ≈ 5,9.10⁻⁷ m
soit environ 590 nm, radiation visible (orange)
1 votes
Thanks 1
siazzle
Merci de votre aide
More Questions From This User
See All
siazzle
February 2021 | 0 Respostas
Responda
siazzle
February 2021 | 0 Respostas
Responda
siazzle
January 2021 | 0 Respostas
Responda
siazzle
January 2021 | 0 Respostas
Responda
siazzle
January 2021 | 0 Respostas
Responda
siazzle
January 2021 | 0 Respostas
Responda
siazzle
January 2021 | 0 Respostas
Responda
Siazzle
May 2019 | 0 Respostas
Responda
Siazzle
May 2019 | 0 Respostas
Responda
Siazzle
May 2019 | 0 Respostas
Responda
Recomendar perguntas
maceocoulon
November 2022 | 0 Respostas
lblbllbl
November 2022 | 0 Respostas
naelysvannier311
November 2022 | 0 Respostas
PikaS0ra
October 2022 | 0 Respostas
andronight67
October 2022 | 0 Respostas
kim036623
October 2022 | 0 Respostas
Tocam
October 2022 | 0 Respostas
leoniecch
October 2022 | 0 Respostas
Bobjour, pourriez vous m'aider pour le tableau
lillytrsn
October 2022 | 0 Respostas
charles5022
October 2022 | 0 Respostas
×
Report "Bonjour, pourriez-vous m’aider à répondre à ces questions s’il vous plaît ? Merci.... Pergunta de ideia de siazzle"
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
Sobre nós
Política de Privacidade
Termos e Condições
direito autoral
Contate-Nos
Helpful Social
Get monthly updates
Submit
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Verified answer
Bonjour,a) échographie : onde sonore (onde mécanique)
mobile : onde électromagnétique
b) ΔE = hν
h constante de Planck ≈ 6,63.10⁻³⁴ m².kg.s⁻¹ ou J.s
ν fréquence en Hz
ΔE = |E₀ - E₁| = |-5,14 + 3,03| = 2,11 eV
soit 2,11 x 1,60.10⁻¹⁹ J = 3,376.10⁻¹⁹ J
⇒ ν = ΔE/h
soit ν = 3,376.10⁻¹⁹/6,63.10⁻³⁴ ≈ 5.10¹⁴ Hz
Cette fréquence correspond a une longueur d'onde de :
λ = c/ν = 3.10⁸/5.10¹⁴ ≈ 5,9.10⁻⁷ m
soit environ 590 nm, radiation visible (orange)