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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
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+clc
+clear
+//input
+c=3*10^8//speed of light
+m=9.1*10^-31//mass of electron
+tw=5.12*10^-7//threshhold wavelength
+w1=4.52*10^-8 //radiation wavelength
+h=6.6*10^-34//stephans constant
+//calculation
+f0=c/tw//threshhold frequency
+w=h*f0//work function
+a=h*c/w1//einsteins photo electric equation
+v=sqrt((2*(a-w))/m)//photoelectric energy
+emax=0.5*m*v*v
+//output
+printf("threshhold frequency is %3.3e Hz",f0)
+printf("\n the work function is %3.3e J",w)
+printf("\n the maximum photoelectric speed is %3.3e ms^-1",v)
+printf("\n the maximum photoelectric energy is %3.3e J",emax)