If the scattering angle of the light in Compton's scattering ...

[stevenposner]

If the scattering angle of the light in Compton's scattering experiment is 90,
 
  what is the change in the wavelength of the light? (melectron = 9.11  10-31 kg, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
  A) 1.22  10-12 m B) 3.65  10-12 m C) 4.85  10-12 m D) 2.42  10-12 m

Question 2

In a velocity selector consisting of perpendicular electric and magnetic fields, the speeds of the charged particles passing through the selector are increased or decreased until they are equal to the desired speed.
 
  A) True B) False

[laurnthompson]

Answer to Question 1

D

Answer to Question 2

B

[stevenposner]

Thanks

[laurnthompson]

Welcome