Question

1) Ground state hydrogen is illuminated with light of wavelength of 82.7nm. The speed of the ionized elector is?

2) Calculate the de Broglie wavelength of a 0.05ev thermal neutron

Answer #1

a ground state hydrogen atom absorbs a photon of light having a
wavelength of 93.73 nm. it then gives off a photon having a
wavelength of 410.1 nm. what is the final state of the hydrogen
atom?

A ground state hydrogen atom absorbs a photon of light having a
wavelength of 92.57 nm. It then gives off a photon having a
wavelength of 954.3 nm. What is the final state of the hydrogen
atom? Values for physical constants can be found here.

A
ground state hydrogen atom absorbs a photon light having a
wavelength of 92.57 nm. It then gives off a photon having a
wavelength of 1944 nm. What is the final state of the hydrogen
atom?
I got Nf=1.14 and it wasn't right

A ground state hydrogen atom absorbs a photon of light having a
wavelength of 92.27 nm. It then gives off a photon having a
wavelength of 383.4 nm. What is the final state of the hydrogen
atom? Values for physical constants can be found here. nf=
please try to show solution

Calculate the de Broglie wavelength for a proton with a velocity
3.98% of the speed of light..

(a) What is the angular momentum of an electron in the ground
state of a hydrogen atom and by how much does that angular momentum
increase when the electron moves to the next higher energy
level?
(b) Provide a concise explanation for how the answers to the
previous questions can be explained in terms of resonance and the
de Broglie hypothesis that electrons have a wavelength that is
inversely proportional to their momentum.

Q:
(i) Neutron wavelength: Calculate the wavelength of thermal
neutrons at (a) room temperature and (b) cooled to 4 K (liquid He
temperature). How do these compare with 400 keV electrons and to
typical Brehmmstrahlung radiation from an x-ray tube
(ii) Thermal velocities, de Broglie wavelength: A thermal
neutron has a kinetic energy of 3/2 kT, where T is room
temperature, 300 K. i.e. these neutrons are in thermal equilibrium
with their surroundings. (a) Calculate the thermal velocity of such...

1. (a) Consider a thermal neutron, that is, a neutron with speed
v corresponding to the average thermal energy at the temperature T
= 300K. Is it possible to observe a diď¬€raction pattern when a beam
of such neutrons falls on a crystal? Justify your answer with a
calculation. (b) In a large accelerator, an electron can be
provided with an energy over 1GeV = 109eV. What it is the de
Broglie wavelength corresponding to such electrons?

a monochromatic beam of light is absorbed by a collection of
ground state hydrogen atoms in such a way that 6 different
wavelengths are observed when the hydrogen relaxes back to the
ground state. (a) what is the wavelength of the incident beam?
explain your steps. (b) what is the longest wavelength in the
emission spectrum of these atoms? (c) to what portion of the
electromagnetic spectrum and (d) to what series does it belong? (e)
what is the shortest...

1) How will the wavelength of de Broglie electron change if you
increase it
speed 3 times?
2) How much is the wavelength of de Broglie proton different from
the wavelength
where is the Broglie electron if they move at the same speed?
3) Will the wavelength of the particle change if it enters the
potential field?

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