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clc;
c=3*10^8; //velocity in m/sec
l=5*10^-7; //wavelength in m
f=c/l; //calculating frequency
disp(f,"Frequency in Hz = "); //displaying reuslt
h=6.63*10^-34; //planck's constant in J.sec
E=h*f; //calculating energy
disp(E,"Energy in Joule = "); //displaying reuslt
disp(E/(1.6*10^-19),"(a)Max. energy of photons that emerge = "); //displaying result
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