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clear
//Given
v=150.0
mn=1.675*10**-27 //Kg
En=150*1.6*10**-19
h=6.62*10**-34
//Calculation
//
le=12.27/sqrt(v)
ln=h/sqrt(2*mn*En)
//Result
printf("\n (i) De-Broglie wavelength of electron is %0.0f A",le)
printf("\n (ii) De-Broglie wavelength of neutron is %0.4f A",ln*10**10)
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