SATHEE: Atomic Structure Question 396

Atomic Structure Question 396

Question: At temperature T, the average kinetic energy of any particle is $\frac{3}{2} K T .$ The de Broglie wavelength follows the order:

Options:

A) Visible photon > Thermal neutron > Thermal electron

B) Thermal proton > Thermal electron > Visible photon

C) Thermal proton > Visible photon > Thermal electron

D) Visible photon > Thermal electron > Thermal neutron

Show Answer

Answer:

Correct Answer: D

Solution:

Kinetic energy of any particle $= \frac{3}{2} K T$ Also $K . E . = \frac{1}{2} m v^{2}$

$\frac{1}{2} m v^{2} = \frac{3}{2} K T \Rightarrow v^{2} = \frac{3 K T}{m}$

$v = \sqrt{\frac{3 K T}{m}}$ De-broglie wavelength $= λ = \frac{h}{m v} = \frac{h}{m \sqrt{\frac{3 K T}{m}}}$

$λ = \frac{h}{\sqrt{3 K T m}} λ \propto \frac{1}{\sqrt{m}}$ Mass of electron < mass of neutron $λ$ (electron) > $λ$ (neutron)

पिछला

अगला

गोपनीयता नीति

द्वारा संचालित Prutor@IITK

sathee@iitk.ac.in

SATHEE का मीडिया कवरेज

खेल स्टोर

ऐप स्टोर

Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on "I understand".

Atomic Structure Question 396

Question: At temperature T, the average kinetic energy of any particle is 32KT. The de Broglie wavelength follows the order:

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Menu

Question: At temperature T, the average kinetic energy of any particle is $\frac{3}{2} K T .$ The de Broglie wavelength follows the order: