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+// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION 
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 4: ILLUMINATION
+
+// EXAMPLE : 4.5 :
+// Page number 754
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+flux = 900.0       // Lamp emitting light(lumens)
+D = 30.5           // Diameter of globe(cm)
+B = 250.0*10**-3   // Uniform brightness(Ambert)
+
+// Calculations
+cp = %pi/4*D**2*(B/%pi)            // Candle power
+flux_emit = cp*4*%pi               // Flux emitted by globe(lumens)
+flux_abs = flux-flux_emit          // Flux absorbed by globe(lumens)
+light_abs_per = flux_abs/flux*100  // Light absorbed(%)
+
+// Results
+disp("PART IV - EXAMPLE : 4.5 : SOLUTION :-")
+printf("\ncp of the globe = %.f ", cp)
+printf("\nPercentage of light emitted by lamp that is absorbed by the globe = %.1f percent\n", light_abs_per)
+printf("\nNOTE: Changes in the obtained answer from that of textbook is due to more precision here & approximation in textbook solution")