Loughborough University - Supercharge your career at a Top-10 UK Business School

Please can someone help me with the formula for electron volt in energy quantization, and...

Please can someone help me with the formula for electron volt in energy quantization, and also the formulae for wavelength in duality?

To get notifications when anyone posts a new answer to this question,
Follow New Answers

Post an Answer

Please don't post or ask to join a "Group" or "Whatsapp Group" as a comment. It will be deleted. To join or start a group, please click here

JAMB 2019 CBT Software Agents - Click Here to Apply
JAMB 2019 CBT Software - Download Now, It's Free!

Answers (3)

Maranatha Okpako
4 days ago
I hope you understand.
isaaq
5 days ago
1.The formula for energy in terms of charge and potential difference is E = QV. So 1 eV = (1.6 x 10^-19 coulombs)x(1 volt) = 1.6 x 10^-19 Joules.

2. De Broglie first used Einstein's famous equation relating matter and energy :
\[ E = mc^2 \]
E= energy, m = mass, c = speed of light
2. Using Planck's theory which states every quantum of a wave has a discrete amount of energy given by Planck's equation:
\[ E= h \nu\]
E = energy, h = Plank's constant(6.62607 x 10 J s), υ = frequency
3. Since de Broglie believes particles and wave have the same traits, the two energies would be the same:
\[ mc^2 = h\nu
4. Because real particles do not travel at the speed of light, De Broglie subsituted v, velocity, for c, the speed of light.
\[ mv^2 = h\nu \]
5. Through the equation \(\lambda\), de Broglie substituted \( v/\lambda\) for \(\nu\) and arrived at the final expression that relates wavelength and particle with speed.
\[ mv^2 = \dfrac{hv}{\lambda} \]
Hence:
\[ \lambda = \dfrac{hv}{mv^2} = \dfrac{h}{mv}
Ask Your Own Question

Quick Questions

See More Physics Questions
 
JAMB 2019 CBT Software Agents - Click Here to Apply
JAMB 2019 CBT Mobile App - Download Now, It's Free!
JAMB 2019 CBT Software - Download Now, It's Free!