The Uncertainty Principle
Why electron can not exist in the nucleus of an atom?
Uncertainty in the Position of an Electron (mass ) moving with a velocity of , Accurate up to will be:
The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is:
State Heisenbergs Uncertainty Principle.
What do you mean by uncertainty?
The atomic number of gold is 79.
- 10−11 cm
- 10−16 cm
- 10−13 cm
- 10−19 cm
What is uncertain in the Uncertainty Principle?
- 24 kJ
- 240 J
- 12 kJ
- 48 kJ
- 15 keV
- 1.5 keV
- 150 keV
- 1.5 MeV
- 8×106 Hz
- 8×108 Hz
- 8×109 Hz
- 8×107 Hz
- 2.56 nm
- 1.24 nm
- 3.78 nm
- 0.45 nm
- 70 ∘A
- 0.7 ∘A
- 1.4 ∘A
- 14 ∘A
i) Radiation pressure is I/c if the wave is totally absorbed.
ii) Radiation pressure is I/c if the wave is totally reflected.
iii) Radiation pressure is 2I/c if the wave is totally reflected.
iv) Radiation pressure is in the range I/c<p<2I/c
Is Heisenberg Uncertainty Principle True
When was the Heisenberg uncertainty principle developed?
Who proposed the theory of the Feynman diagram?
- 1.1×10−20 kg m/s
- 2.2×10−20 kg m/s
- 4.4×10−20 kg m/s
- No lower limit
Is Heisenberg uncertainty principle wrong
- Position of electron can be found exactly if its momentum is known.
- Momentum of an electron can be found exactly if its position is known.
- The lowest energy of an atom can hold only one electron.
- Light has a dual nature- wave and photon.
- There is a limit to the accuracy of the measurement of subatomic particles.
State Heisenbergs uncertainty principle.
Is the Heisenberg Uncertainty Principle True?
What does Heisenbergs uncertainty principle imply about the behavior of an electron?
- 1.25×10−6 N
- 2.50×10−6 N
- 1.15×10−6 N
- 3.0×10−6 N
- 1.67×10−7 N/m2
- 1.67×10−5 N/m2
- 1.67×10−9 N/m2
- 1.67×10−2 N/m2