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+clc;
+clear;
+h=6.63*10^-34 //Plancks constant in J-s
+m=9.1*10^-31 //mass in kg
+L=10^-9 //potential width in m
+c=3*10^8 //velocity of light in m/s
+
+//calculation
+lambda=(8*m*c*L^2)/(27*h)
+mprintf("The wavelength of radiation emitted is %1.2e m or 122 nm",lambda)
+//The answer varies due to round off error.