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clear
//
//
//
//Variable declaration
h=6.63*10^-34; //planck's constant(J-sec)
m=9.1*10^-31; //mass of electron(kg)
v=3.5*10^7; //speed(cm/sec)
a=0.0098/100; //accuracy(%)
//Calculations
deltav=v*a; //uncertainity in speed(kg m/sec)
delta_p=m*deltav; //uncertainity in momentum(kg m/sec)
deltax=h/(4*%pi*delta_p); //uncertainity in position of electron(m)
//Result
printf("\n uncertainity in position of electron is %0.4f *10^-8 m",deltax*10^8)
printf("\n answer in the book is wrong")
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