diff options
Diffstat (limited to '3875/CH10/EX10.14/10_14.sce')
| -rw-r--r-- | 3875/CH10/EX10.14/10_14.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/3875/CH10/EX10.14/10_14.sce b/3875/CH10/EX10.14/10_14.sce new file mode 100644 index 000000000..08ed781f7 --- /dev/null +++ b/3875/CH10/EX10.14/10_14.sce @@ -0,0 +1,17 @@ +clc;
+clear;
+P=10^-3 //power in watt
+h=6.62*10^-34 //Plancks constant in J-s
+v=3*10^8 //frequncy of light in Hz
+lambda=4560*10^-10 //wavelength in m
+eff=0.005 //quantum efficiency
+e=1.6*10^-19 //charge in C
+
+//calculation
+E=(h*v)/lambda //energy of each photon in joules
+N=P/E //no of photons incident on the metal per sec
+N_e=N*eff //no of electrons released per sec
+I=N_e*e
+
+mprintf("The photoelectric current is = %1.3e amp or 1.837 micro-amp",I)
+//The Answer provided in the textbook is wrong.
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