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A ball of mass 0.12 kg is moving with a ...

A ball of mass `0.12 kg` is moving with a speed `20 m//s`. Calculate the de Broglie wavelength. (planck constant `h= 6.62xx10^(-34)J.s`)

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Given that : `m=0.12 kg, v=20 m//s`
`h=6.62xx10^(-34)J-sec`.
`lambda=(h)/(p)=(h)/(mv)`
`lambda=(6.62xx10^(-34))/(0.12xx20)=2.758xx10^(-34)m`
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