Heisenberg Uncertainty Principle Recommended PYQs (STRICTLY NCERT Based) Structure of Atom Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Given below are two statement:

Statement I:	The energy of the $\mathrm{He}^{+}$ ion in $n=2$ state is same as the energy of H atom in $n=1$ state
Statement II:	It is possible to determine simultaneously the exact position and exact momentum of an electron in $\mathrm{H}$ atom.

In the light of the above Statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are True
2. Both Statement I and Statement II are False
3. Statement I is True but Statement II is False
4. Statement I is False but Statement II is True

Subtopic: Bohr's Theory | Heisenberg Uncertainty Principle |

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If uncertainty in position and momentum are equal, then the uncertainty in velocity is:

1. $\frac{1}{2 m} \sqrt{\frac{h}{π}}$

2. $\sqrt{\frac{h}{2 π}}$

3. $\frac{1}{m} \sqrt{\frac{h}{π}}$

4. $\sqrt{\frac{h}{π}}$

Subtopic: Heisenberg Uncertainty Principle |

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The measurement of the electron position is associated with
uncertainty in momentum,
which is equal to 1 x 10^-18 g cm s^-1.
The uncertainty in electron velocity will be
(mass of an electron is 9 x 10^-28 g)-

1. 2 x 10⁹ cm s^-1
2. 1 x 10⁹ cm s^-1
3. 1 x 10⁵ cms^-1
4. 1 x 10¹¹ cm s^-1

Subtopic: Heisenberg Uncertainty Principle |

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If the mass of electron is 9.11×10^-31 kg and the planck's constant is 6.626 ×10^-34 Js, then the uncertainty involved in the measurement of velocity within a distance of 0.1 Å is:

1. $5.79 \times 10^{6}$ $m s^{- 1}$

2. $5.79 \times 10^{7}$ $m s^{- 1}$

3. $5.79 \times 10^{8}$ $m s^{- 1}$

4. $5.79 \times 10^{5}$ $m s^{- 1}$

Subtopic: Heisenberg Uncertainty Principle |

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Uncertainty in position of a $e^{-}$ and He is similar. If uncertainty in momentum of $e^{-}$ is $32 \times 10^{5}$ , then uncertainty in momentum of He will be:

1.	32 × 10⁵	2.	16×10⁵
3.	8 × 10⁵	4.	None of the above

Subtopic: Heisenberg Uncertainty Principle |

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Statement I:	The energy of the \(\mathrm{He}^{+}\) ion in \(n=2\) state is same as the energy of H atom in \(n=1\) state
Statement II:	It is possible to determine simultaneously the exact position and exact momentum of an electron in \(\mathrm{H}\) atom.

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