Exam 34: Wave Particle Duality and Quantum Physics

The wave function for a particle between x = -4 cm and 4 cm is given by where L = 8 cm.Outside this range,the wave function is equal to zero.The value of A is

An electron in a hydrogen atom jumps from n = 5 to n = 2.The color of the photon given off is

Which of the following statements about Maxwell's theory of electromagnetism is false?

A classical point particle moves back and forth with constant speed between two walls at x = 0 and x = 6 cm.What is the probability of finding the particle between x = 4.0 cm and x = 4.4 cm?

The energy of the n = 1 level of hydrogen is -13.6 eV.The energy of the n = 4 level is

Magnetic Resonance Imaging (MRI)is a much used noninvasive diagnostic technique in medicine.The radio frequency photons used have energies of about 10^-7 eV.What wavelength does this correspond to?

A proton is in a one-dimensional box of length ~ 2 $\times$ 10^-15 m (i.e.,~ size of a nucleus).What is the approximate ground-state energy in eV?

The photoelectric threshold of a certain metal is 310 nm.The maximum kinetic energy of electrons ejected from the surface of the metal by ultraviolet light of wavelength 200 nm is

When a surface is illuminated with light of wavelength 500 nm,the maximum speed of the photoelectrons is 300 km/s.When the same surface is illuminated by light of half this wavelength what is the maximum speed of the photoelectrons in this case?

A gamma-ray photon of energy 800 keV scatters off an electron at an angle perpendicular to its original direction.It then scatters off a second electron such that this secondary scattered photon continues in the direction of the original photon.Calculate the difference in energy between the first and second recoiling electrons.

In a Compton scattering experiment,an 8.00-MeV incident photon is scattered at an angle of 15º with energy of 5.20 MeV.The kinetic energy of the recoil electron is

The work functions for two different metals A and B,are 3.23 eV and 5.33 eV,respectively.If photons of 220 nm are incident on the two metals,calculate the difference in energy of the fastest photoelectrons from metal A and metal B.

The maximum kinetic energy of electrons ejected from barium (whose work function is 2.50 eV)when it is illuminated by light of wavelength 350 nm is

A classical particle

A mass of 0.250 kg is oscillating with small amplitude oscillations on the end of a spring whose stiffness constant is 10 N/m.When this oscillator makes a transition from its n = 6 state to its n = 5 state,the energy of the photon emitted is

An X-ray photon of wavelength 0.10 nm is Compton-scattered from a free electron.The greatest observed shift in wavelength,as seen in the scattered photon,is

Electrons do not exhibit wave properties as readily as light because electrons typically have much __________ momenta than light and hence much __________ wavelengths.

An electron is sent through a slit whose width is $\Delta$ x = 0.040 cm.The uncertainty in the x component of the momentum of this electron is approximately

What is the momentum (in SI units)of a photon of wavelength $\lambda$ = 480 nm? (Planck's constant h = 6.626 $\times$ 10^-34 J·s)

An electron in the hydrogen atom makes a transition from an energy level of -1.51 eV to one of energy -3.40 eV.In this process a photon is emitted with what wavelength?