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//Chapter 1: Structure and Bonding
//Problem: 4
clc;
//Declaration of Constants
c = 3 * 10 ** 8 // Speed of light,in m/sec
m = 9.1 * 10 ** -31 // Mass of electron,in kg
h = 6.626 * 10 ** -34 // Plank's constant,in J.sec
//Declaration of Variable
ke = 4.55 * 10 ** -25 // Kinetic Energy,in J
// Solution
v = sqrt(ke * 2 / m)
lamda = h / (m * v)
mprintf("The de Broglie wavelength is : %.2e m',lamda)
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