(A) The two major developments that led to the failure of Bohr's model and provided a more accurate description of atomic structure are:$(i)$ The dual

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Dual behaviour of matter and Heisenberg's uncertainty principle

(A) The two major developments that led to the failure of Bohr's model and provided a more accurate description of atomic structure are:$(i)$ The dual behaviour of matter,proposed by de-Broglie,which states that all matter exhibits both wave-like and particle-like properties.$(ii)$ Heisenberg's uncertainty principle,which states that it is impossible to determine simultaneously both the exact position and the exact momentum of an electron.

Class 11 Chemistry Structure of Atom Uncertainty principle and Schrodinger wave equation

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Which two developments remove the drawbacks of Bohr's model?

A
Dual behaviour of matter and Heisenberg's uncertainty principle
B
Photoelectric effect and Black body radiation
C
Planck's quantum theory and Photoelectric effect
D
Black body radiation and Dual behaviour of matter

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Class 11 Questions

Class 11

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Structure of Atom

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Uncertainty principle and Schrodinger wave equation

The uncertainty of velocity of an electron is $5.7 \times 10^5 \ m \ s^{-1}$. Find its uncertainty in position.

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The position of both an electron and a helium atom is known within $1.0 \, nm$ and the momentum of the electron is known within $50 \times 10^{-26} \, kg \, m \, s^{-1}$. The minimum uncertainty in the measurement of the momentum of the helium atom is

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Uncertainty in the position of an electron (mass $= 9.1 \times 10^{-31} \, kg$) moving with a velocity $300 \, ms^{-1}$,with uncertainty $0.001\%$ will be :- $(h = 6.63 \times 10^{-34} \, Js)$

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The uncertainty in the position of a particle of mass $0.25 \, kg$ is $10^{-5} \, m$. The uncertainty in its velocity is ...... $m/s$.

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The effect of the uncertainty principle is significant only for the motion of microscopic particles and is negligible for macroscopic particles. Justify the statement with the help of a suitable example.

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Which two developments remove the drawbacks of Bohr's model?

Similar Questions

The uncertainty of velocity of an electron is $5.7 \times 10^5 \ m \ s^{-1}$. Find its uncertainty in position.

The position of both an electron and a helium atom is known within $1.0 \, nm$ and the momentum of the electron is known within $50 \times 10^{-26} \, kg \, m \, s^{-1}$. The minimum uncertainty in the measurement of the momentum of the helium atom is

Uncertainty in the position of an electron (mass $= 9.1 \times 10^{-31} \, kg$) moving with a velocity $300 \, ms^{-1}$,with uncertainty $0.001\%$ will be :- $(h = 6.63 \times 10^{-34} \, Js)$

The uncertainty in the position of a particle of mass $0.25 \, kg$ is $10^{-5} \, m$. The uncertainty in its velocity is ...... $m/s$.

The effect of the uncertainty principle is significant only for the motion of microscopic particles and is negligible for macroscopic particles. Justify the statement with the help of a suitable example.

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