Heisenberg's Uncertainity Principle
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CHXI02:STRUCTURE OF ATOM

307355 If the uncertainty in position, momentum, energy, time, angular momentum and angular displacement are \({\rm{\Delta x,\Delta P,\Delta E,\Delta t,\Delta }}\phi \) and \({\rm{\Delta \theta }}\) respectively. Which of the following is correct about Heisenberg’s uncertainly principle?

1 \({\rm{(\Delta x)(\Delta P)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
2 \({\rm{(\Delta E)(\Delta t)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
3 \({\rm{(\Delta }}\phi {\rm{)(\Delta \theta )}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
4 \({\rm{All }}\,{\rm{of }}\,{\rm{these}}\)
CHXI02:STRUCTURE OF ATOM

307356 Statement A :
It is impossible to determine the exact position and exact momentum of an electron simultaneously and accurately
Statement B :
The path of an electron in an atom is clearly defined.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
CHXI02:STRUCTURE OF ATOM

307357 Select the incorrect statement about uncertanty principle

1 The product of uncertainty in momentum and position is always constant.
2 This principle can explain why electron cannot exist in nucleus.
3 This principle is applicable to microscopic as well as macroscopic particles.
4 Heisenberg uncertainty principle ruled out the concept of definite trajectories around the nucleus.
CHXI02:STRUCTURE OF ATOM

307358 The uncertainty in momentum of an electron is \(1 \times 10^{-5} \mathrm{~kg} \mathrm{~ms}^{-1}\). The uncertainty in its position will be \(\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)\)

1 \(5.28 \times 10^{-30} \mathrm{~m}\)
2 \(5.25 \times 10^{-28} \mathrm{~m}\)
3 \(1.05 \times 10^{-26} \mathrm{~m}\)
4 \(2.715 \times 10^{-3} \mathrm{~m}\)
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CHXI02:STRUCTURE OF ATOM

307355 If the uncertainty in position, momentum, energy, time, angular momentum and angular displacement are \({\rm{\Delta x,\Delta P,\Delta E,\Delta t,\Delta }}\phi \) and \({\rm{\Delta \theta }}\) respectively. Which of the following is correct about Heisenberg’s uncertainly principle?

1 \({\rm{(\Delta x)(\Delta P)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
2 \({\rm{(\Delta E)(\Delta t)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
3 \({\rm{(\Delta }}\phi {\rm{)(\Delta \theta )}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
4 \({\rm{All }}\,{\rm{of }}\,{\rm{these}}\)
CHXI02:STRUCTURE OF ATOM

307356 Statement A :
It is impossible to determine the exact position and exact momentum of an electron simultaneously and accurately
Statement B :
The path of an electron in an atom is clearly defined.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
CHXI02:STRUCTURE OF ATOM

307357 Select the incorrect statement about uncertanty principle

1 The product of uncertainty in momentum and position is always constant.
2 This principle can explain why electron cannot exist in nucleus.
3 This principle is applicable to microscopic as well as macroscopic particles.
4 Heisenberg uncertainty principle ruled out the concept of definite trajectories around the nucleus.
CHXI02:STRUCTURE OF ATOM

307358 The uncertainty in momentum of an electron is \(1 \times 10^{-5} \mathrm{~kg} \mathrm{~ms}^{-1}\). The uncertainty in its position will be \(\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)\)

1 \(5.28 \times 10^{-30} \mathrm{~m}\)
2 \(5.25 \times 10^{-28} \mathrm{~m}\)
3 \(1.05 \times 10^{-26} \mathrm{~m}\)
4 \(2.715 \times 10^{-3} \mathrm{~m}\)
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CHXI02:STRUCTURE OF ATOM

307355 If the uncertainty in position, momentum, energy, time, angular momentum and angular displacement are \({\rm{\Delta x,\Delta P,\Delta E,\Delta t,\Delta }}\phi \) and \({\rm{\Delta \theta }}\) respectively. Which of the following is correct about Heisenberg’s uncertainly principle?

1 \({\rm{(\Delta x)(\Delta P)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
2 \({\rm{(\Delta E)(\Delta t)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
3 \({\rm{(\Delta }}\phi {\rm{)(\Delta \theta )}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
4 \({\rm{All }}\,{\rm{of }}\,{\rm{these}}\)
CHXI02:STRUCTURE OF ATOM

307356 Statement A :
It is impossible to determine the exact position and exact momentum of an electron simultaneously and accurately
Statement B :
The path of an electron in an atom is clearly defined.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
CHXI02:STRUCTURE OF ATOM

307357 Select the incorrect statement about uncertanty principle

1 The product of uncertainty in momentum and position is always constant.
2 This principle can explain why electron cannot exist in nucleus.
3 This principle is applicable to microscopic as well as macroscopic particles.
4 Heisenberg uncertainty principle ruled out the concept of definite trajectories around the nucleus.
CHXI02:STRUCTURE OF ATOM

307358 The uncertainty in momentum of an electron is \(1 \times 10^{-5} \mathrm{~kg} \mathrm{~ms}^{-1}\). The uncertainty in its position will be \(\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)\)

1 \(5.28 \times 10^{-30} \mathrm{~m}\)
2 \(5.25 \times 10^{-28} \mathrm{~m}\)
3 \(1.05 \times 10^{-26} \mathrm{~m}\)
4 \(2.715 \times 10^{-3} \mathrm{~m}\)
For More Updates join with Us
CHXI02:STRUCTURE OF ATOM

307355 If the uncertainty in position, momentum, energy, time, angular momentum and angular displacement are \({\rm{\Delta x,\Delta P,\Delta E,\Delta t,\Delta }}\phi \) and \({\rm{\Delta \theta }}\) respectively. Which of the following is correct about Heisenberg’s uncertainly principle?

1 \({\rm{(\Delta x)(\Delta P)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
2 \({\rm{(\Delta E)(\Delta t)}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
3 \({\rm{(\Delta }}\phi {\rm{)(\Delta \theta )}} \ge \frac{{\rm{h}}}{{{\rm{4\pi }}}}\)
4 \({\rm{All }}\,{\rm{of }}\,{\rm{these}}\)
CHXI02:STRUCTURE OF ATOM

307356 Statement A :
It is impossible to determine the exact position and exact momentum of an electron simultaneously and accurately
Statement B :
The path of an electron in an atom is clearly defined.

1 Statement A is correct but statement B is incorrect
2 Statement A is incorrect but statement B is correct
3 Both statements are correct
4 Both statements are incorrect
CHXI02:STRUCTURE OF ATOM

307357 Select the incorrect statement about uncertanty principle

1 The product of uncertainty in momentum and position is always constant.
2 This principle can explain why electron cannot exist in nucleus.
3 This principle is applicable to microscopic as well as macroscopic particles.
4 Heisenberg uncertainty principle ruled out the concept of definite trajectories around the nucleus.
CHXI02:STRUCTURE OF ATOM

307358 The uncertainty in momentum of an electron is \(1 \times 10^{-5} \mathrm{~kg} \mathrm{~ms}^{-1}\). The uncertainty in its position will be \(\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)\)

1 \(5.28 \times 10^{-30} \mathrm{~m}\)
2 \(5.25 \times 10^{-28} \mathrm{~m}\)
3 \(1.05 \times 10^{-26} \mathrm{~m}\)
4 \(2.715 \times 10^{-3} \mathrm{~m}\)
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