Question

Uity
Example 3.14:- A conduction electron in copper near the absolute zero of temperature has
kinetic energy of 4.2eV, find speed of electron.​

Answer 1

Explanation:

Given A conduction electron in copper near the absolute zero of temperature has kinetic energy of 4.2eV, find speed of electron.

• We need to find the speed of electron.
• Given kinetic energy K = 4.2 eV
• So we have 4.2 x 1.6 x 10^-19
•                     = 6.72 x 10^-19 C
• So we have  
•                    v = √2 K / m
•                       = √2 x 6.72 x 10^-19 / 9.1 x 10^-31 kg m^2 / s^2 / J
•                       = 1.04 x 10^6 m/s

Reference link will be

https://brainly.in/question/11025012