What is the de Broglie wavelength (in cum) of a 160g cricket ball trav

1.	What is the de Broglie wavelength (in cum) of a 160g cricket ball travelling at 140 Km hr^(-1).
Answer» Solution :160g=.0.16kg. v=velocity of the criket ball=`140Km HR^(-10)` `=(140xx5)/(18)=38.88ms^(-1)` de Broglie equation=gamma=`h/(MV)` h=planck.s constant=`6.626xx10^(34)kgm^(2)s^(-1)` de Broglie wavelength `=6.626xx10^(-34)cancel(kg m^(2) s^(-1))/(cancel(0.16kgxx38.88)cancel(ms^(-1)))` `gamma=6.626xx(10^(-34))/(6.2208)` `gamma=1.065xx10^(-34)m` wavelength in cum`=1.065xx10^(-34)XX100` `=1.065xx10^(32)cm(or) 1.065xx10^(-34)m`

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