1.

It is not possible to determine precisely both the position and the momentum or velocity) of a small moving particle (e.g. electron , proton, etc) Calculate the uncertainity in velocity of a cricket ball of mass 150 g if the uncertainity in its position is of the order of 1 Å (h = 6.6 xx 10^(-34) kgm^(2)s^(-1))

Answer»

`3.8 xx 10^(-25) MS^(-1)`
`3.499 xx 10^(-24) ms^(-1)`
`3.8 xx 10^(-30) ms^(-1)`
`3.499 xx 10^(-30) ms^(-1)`

Answer :B


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