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//Chapter 1: Structure and Bonding
//Problem: 11
clc;
//Declaration of Constants
c = 3 * 10 ** 8 // Speed of light, m/sec
m = 9.1 * 10 ** -31 // Mass of electron, kg
h = 6.626 * 10 ** -34 // Plank's constant, J.sec
// Variables
lamda = 200 * 10 ** -7 // Wavelength, cm
wf = 6.95 * 10 ** -12 // Work function, erg
// Solution
E = (h * c) * 10 ** 9 / lamda
mprintf("Energy of photon :%.3e erg\n",E)
ke = E - wf
v = sqrt((2 * ke) / (m * 10 ** 3)) * 10 ** -2
mprintf(" The maximum velocity of electron :%.3e m/sec",v)
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