1.

Hiesenberg.s uricertainty principle states that it is impossible to determine simultaneously the position and momentum of a particle. He considered the limits of how precisely we can measure properties of an e^- (or)other microscopic particles like electron. The more accurately we measure the momentum of a particle, less accurately we can determine its position. The police are monitoring an automobile of mass 2.0 tons speeding along a high way. They are certain about location of the vehicle only to with in Im, what is the minimum uncertainty in the speed of the vehicle ?

Answer»

`3.9xx10^(-38) MS^(-1)`
`12.4xx10^(-38) ms^(-1)`
`2.63xx10^(-38) ms^(-1)`
`0.62xx10^(-38) ms^(-1)`

SOLUTION :`Deltav =(H)/(4pi . ""m Delta )`
`=(6.625xx10(-34))/(4xx3.14xx2000xx1)` `=2.63xx10^(-38)` m/sec


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