 # PROBLEM 1 # 
Standard formula used 
 1/2*m*v^2 = eV 

 Max. speed of electrons at 40000 Volts is 1.186000e+08 m/sec.
 Max. speed of electrons at 20000 Volts is 8.386286e+07 m/sec./sec.
 Max. speed of electrons at 100000 Volts is 1.875231e+08 m/sec. 
 Shortest wavelength of x-ray = 0.310000 Angstrom.
 Shortest wavelength of x-ray = 0.620000 Angstrom.
 Shortest wavelength of x-ray = 0.124000 Angstrom.
