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  4. It is impossible to determine simultaneously the position and velocity of small particles such as electron. It is a statement of

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Q. "It is impossible to determine simultaneously the position and velocity of small particles such as electron". It is a statement of

AIIMSAIIMS 1997Structure of Atom

Solution:

According to Heisenberg's uncertainity principle,

$\Delta x \times \Delta v=\frac{h}{4 \pi} $

$\Delta x$ = uncertainity in position

$\Delta v$ = uncertainity in velocity

$h=$ Planck's constant $\left(6.63 \times 10^{-34} Js \right)$