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Which of the following is Heisenberg uncertainty principle?
(a)
(b)
(c)
(d)

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Important Questions on Structure of Atom
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An accelerated electron has a speed of with an uncertainty of . The uncertainty in finding its location while in motion is .
The value of is __________. (Nearest integer)
[Use mass of electron,

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An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.
For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.
According to wave mechanics, the ground state angular momentum is equal to .
The plot of Vs for various azimuthal quantum numbers, shows peak shifting towards higher value.

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(I) An electron in molecule
(II) A hydrogen atom in a , molecule
(III) A proton in the carbon nucleus
(IV) A molecule within a nanotube

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If the uncertainty in velocity and position of a minute particle in space are, and respectively. The mass of the particle in is___(Nearest integer)
(Given : )

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If a cricket ball of weight has an uncertainty of in its velocity, then the uncertainty in the position of the cricket ball is

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A ball weighing is moving with a velocity of If the uncertainty in its velocity is , then the uncertainty in its position is _ (Rounded off to the nearest integer)
[Given: ]

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) It is impossible to detemine exact position and exact momentum of an electron simultaneously.
) It is applicable to even macroscopic objects.
) It is possible to detemine the exact position and momentum of an electron simultaneously.
) It is impossible to determine the exact position and momentum of macroscopic object simultaneously.

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