ariannaclose7624 ariannaclose7624
  • 23-09-2017
  • Physics
contestada

What is the de broglie wavelength of an electron traveling at 1.34×105 m/s ?

Respuesta :

barnuts
barnuts barnuts
  • 06-10-2017

To solve this problem, we make use of the formula:

λ = h/mv 

where:

λ = wavelength of electron

m = mass of electron = 9.11e-31 kg

v = speed of electron = 1.34×10^5 m/s

h = constant

 

Hence,
λ = (6.626x10^-34 J-s) / [(9.11e-31 kg)(1.34 x 10^5 m/s)] 
λ = 5.43x10^-9 m or 5.43 nm

Answer Link

Otras preguntas

A scale on a map shows 2 inches = 25 miles part A how many inches on the map represents 60 miles partB joe many miles is represented by 1/4 inch on the map
What was Albert Einsteins intelligence quotient?
Solve each equation 2 = e - 1 r - 3 = 1 z - 6.3 = 2.1 t - 9.25 = 5.45 k - 32.9 = 16.5
What occurs at the reaction velocity (CaCo3 + 2HCL- CaCl2 + Co2 + H2O) ... if we add water to hydrochloric acid?
Can someone please help me
Which describes a similar between Puerto Rico and Guam after spanish-American war?
Triangle A'B'C with coordiantes of A'(-6,2) B'(-4,2), and c'(-6,-2) is the image of triangle ABC after a translation of (x-3, y+2). What could be possible coord
Your hands and feet usually grow
Answer please is it c, please help
Change the following percent into a fraction 1/7%