Chapter16 Quantum Theory

Example 16.1, Pageno.67

In [12]:
import math
#initialisation of variables
e=1.6*10**-19 #coloumb electron ˆ−1
F=96496 # coloumbs equivˆ−1
#CALCULATIONS
N=F/e
#RESULTS
N=N*10**-23
N=round(N,4)
print 'avagadros number =',N,'*10**23 coloumbs equivˆ−1'

avagadros number = 6.031 *10**23 coloumbs equivˆ−1

Example 16.2, Pageno.67

In [14]:
import math
#initialisation of variables
wl=4500 #A
c=3*10**10 #cm/ sec
#CALCULATIONS
l=wl*10**-8
l1=wl*10**-1
f=1/l
f1=c/l
#RESULTS
l=l*10**5
f=round(f,1)
f1=f1*10**-14
f1=round(f1,3)
print 'wavelength in centimetres =',l,'* 10**-5 cm'
print 'wavelength in micrometres =',l1,'cm'
print 'frequency of bluelight =',f1,'* 10**14 secˆ−1'
print 'wave number =',f,'cmˆ−1'

wavelength in centimetres = 4.5 * 10**-5 cm
wavelength in micrometres = 450.0 cm
frequency of bluelight = 6.667 * 10**14 secˆ−1
wave number = 22222.2 cmˆ−1