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+//Example 7.4, Page Number 311
+//Noise in photomultipliers
+clc;
+
+T=300 //Temperature in Kelvin
+lr=10**3 //Load resistor in ohms
+bw=10**3 //Bandwidth in hertz
+k=1.38*(10**-23) //Boltzman Constant in meter square kilogram per second square Kelvin
+i=10**-14 //Photomultiplier current in Amperes
+e=1.6*(10**-19) //Charge of an electron in Coulombs
+g=10**7 //Photomultiplier Gain
+
+//From equation 7.14
+V=sqrt(4*k*T*bw) //V is the shot noise voltge
+
+//From equation 7.12
+is=sqrt(2*i*e*bw) //is is the shot noise current in Amperes
+
+V1=is*g*lr //V1 is the voltage observed across load resistance
+
+mprintf("The RMS Value of the Voltage is:%.1e V\n",V)
+mprintf(" The Shot Noise Current is:%.1e A\n",is)
+mprintf(" The Shot Noise Voltage across load resistor is:%.1e V",V1)