A relatively long lived excited state of an atom has a lifetime of 3.25 ms. What is the minimum uncertainty (in eV) in its energy?
A relatively long lived excited state of an atom has a lifetime of 3.25 ms. What...
An electron remains in an excited state of an atom for typically 10^?8s. What is the minimum uncertainty in the energy of the state (in eV)?
a) If the position of an electron in a membrane is measured to an accuracy of 1.30 um, what is the electron's minimum uncertainty in velocity? Take the mass of an electron to be 9.11 x 10-31 kg. 44.38 m/s Show hint b) If the electron has this velocity, what is its kinetic energy? 5.6 · 10-9 Show hint a) What is y for a proton having an energy of 1.25 TeV, produced by the Fermilab accelerator? Take the mass...
The energy of the first excited state of a hydrogen atom is -0.34 eV ± 0.0003 eV. What is the average lifetime for this state?
An atom in an excited state 2.75 eV above the ground state remains in that excited state 2.05 µs before moving to the ground state. (a) Find the frequency of the emitted photon. THz (b) Find the wavelength of the emitted photon. nm (c) Find the approximate uncertainty in energy of the photon. ΔE ≥ peV
2. Estimate the lifetime of the excited state of an atom whose natural emission line width is 3.00 x 10-4 eV.
3. An atom in an excited state 1.80 eV above the ground state remains in that excited state 2.00 μs before m oving to the ground state. Find (a) the frequency and (b) the wavelength of the emitted photon. (c) Find the approximate uncertainty in energy of the photon.
For the hydrogen atom, its energy at ground state is 13.6 eV, at first excited state is 3.4 eV at second excited state is 1.5 eV and at the third excited state is 0.85 eV. i) Give the energy value for the first two states in Joule (J). [1eV =1.6 x 10-19 J] (2 marks) ii) With the aid of schematic diagram, determine the energy of emitted photon when the atom jumps from the first and third excited states to...
(20 points) Treat the hydrogen atom as a one-dimensional problem, where the electron is confined to the diameter of the atom in the first excited state (n-2). a.) Use the uncertainty principle to estimate the minimum kinetic energy of an electron in this state, assuming that the uncertainty in position equal to it's diameter. (Note: Relativistic corrections are not necessary). b.) Assuming this excited electron only remains in this state for 0.1 ns, before emitting a photon and returning to...
An atom in an excited state 2.00ev above the ground state remains in that excited state 2.03 us before moving to the ground state. Calculate the frequency of the emitted photon. Submit Answer Tries 0/10 Calculate the wavelength of the emitted photon. Submit Answer Tries 0/10 Calculate the approximate uncertainty in energy of the photon. Submit Answer Tries 0/10
A photon emitted by an excited atom has an energy of 2.5 eV. What is its frequency?