Question

The velocity of an electron with de Broglie wavelength of 1.0 x 10 nm is :
​

Answer 1

7.29 × 10^4 m/s

Step-by-step explanation:

the wavelength given is 1.0×10 nm

= 1.0× 10^-8 m

mass of electron = 9.1 × 10^-31 kg

h is planck's constant =6.634 × 10^-34

asper de broglie equation =

lambda= h/ mv

1.0×10^-8 = 6.634 × 10^-34 / (9.1 × 10^-31 × v)

v= 7.29 × 10^4 m/s.