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clear;
clc;
printf("\nEx2.24\n");
//page no.-69
//given
h=6.62*10^-34;..............//planck's constant in joule-sec
m=1.67*10^-27;..............//mass of proton
c=3*10^8;..................//speed of light in m/s
v=c/20;...................//velocity of proton
lambda=h/(m*v)............//wavelength in m
printf("\nwavelength is 2.643*10^-14 m\n");
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