"The position and velocity of a small particle like an electron cannot be simultaneously determined." This statement is:
- AHeisenberg uncertainty principle
- BPrinciple of de Broglie's wave nature of electron
- CPauli's exclusion principle
- DAufbau's principle
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The Bohr model of an atom is contradicted by
Easy
View SolutionThe uncertainty in the position of a moving bullet of mass $10 \ g$ is $10^{-5} \ m$. Calculate the uncertainty in its velocity.
Medium
View SolutionThe measurement of the electron position is associated with an uncertainty in momentum,which is equal to $1 \times 10^{-18} \ g \ cm \ s^{-1}$. The uncertainty in electron velocity is (mass of an electron is $9 \times 10^{-28} \ g$):
MediumAIPMT 2008
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The uncertainty in the velocities of two particles $A$ and $B$ are $0.03 \ m \ s^{-1}$ and $0.01 \ m \ s^{-1}$ respectively. The mass of $B$ is four times the mass of $A$. The ratio of uncertainties in their positions is
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