1.

A body of mass x kg is moving with a velocity of 100 m/s.Its de Broglie wavelength is 6.62xx10^(-35)m . Hencex is[h=6.2xx10^(-34)Js]

Answer»

`0.25 kg`
`0.15 kg`
`0.2 kg`
`0.1 kg`

SOLUTION :`lamda=h/(MV)`
`m=h/(lamdav)=(6.62xx10^(-34))/(6.62xx10^(-35)xx100)=0.1kg`


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