1026/CH9/EX9.4/Example9_4.sce


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//chapter9,Example9_4,pg 238

d=2.81*10^-10

theta=14*(%pi/180)//glancing angle

lam=2*d*sin(theta)//min. wavelength

e=1.6*10^-19

V=9100

c=3*10^8

h=(lam*e*V)/c

printf("plancks constant\n")

disp(h)