Physics Modern Physics Level: Misc Level
waves and photons (A) can (B) cannot (C) Sometimes, can be used to describe EXACTLY the same EXPERIMENTAL observations. Explain your choice, if possible, give an example.
Physics Modern Physics Level: Misc Level
Calculate the energy in keV of an x -ray photon that has a frequency of 1.69 x 10Hz.
Physics Modern Physics Level: Misc Level
An electron in an old -fashioned T V camera tube is moving at 10.0 x106 m /s in a magnetic field of strength 110 m T. What is the (a) maximum and (b) minimum magnitude of the force acting on the electron due to the field? (c) At one point the electron has an acceleration of magnitude 5.80 x 10 14 m /s 2.What is the angle between the electron s velocity and the magnetic field?
Physics Modern Physics Level: Misc Level
An electron that has a velocity with x component 2.3 x 10 6 m /s and y component 3.8 x 10 6 m /s moves through a uniform magnetic field with x component 0. 030 T and y component -0.17 T. (a) Find the magnitude of the force on the electron. (b) Repeat your calculation for a proton having the same velocity.
Physics Modern Physics Level: Misc Level
An electron is accelerated from rest by a potential difference of 399 V. It then enters a uniform magnetic field of magnitude 160 m T with its velocity perpendicular to the field. Calculate ( a) the speed of the electron and (b) the radius of its path in the magnetic field.
Physics Modern Physics Level: Misc Level
What uniform magnetic field, applied perpendicular to a beam of electrons moving at 7.31 x 10 6 m /s, is required to make the electrons travel in a circular arc of radius 0.349 m ?
Physics Modern Physics Level: Misc Level
Nearly all the mass of an atom is concentrated in its nucleus. Where is its charge located?
Physics Modern Physics Level: Misc Level
Imagine a photon strikes a metal plate that has a work function of Theta =3 x 10 to the - 19 power J. If the photon has an energy of 3.4 x 10 to the negative 18 power J, what is the maximum kinetic energy of the ejected electrons?
Physics Modern Physics Level: Misc Level
A neutral Al ( aluminum ) atom has 13 electrons. What is the total charge of an aluminum atom that has 15 electrons?
Physics Modern Physics Level: Misc Level
if ther is an electric field pointing toward the east, in what direction does the electric force on an an electron point? If there is a magnetic field pointing toward the east and a proton is initially moving north, in what direction will the magnetic force on that proton point?
Physics Modern Physics Level: Misc Level
How much energy is deposited in the body of a 65 kg adult exposed to a 2.0 Gy dose?
Physics Modern Physics Level: Misc Level
How many fissions take place per second in a 200 MW reactor? Assume 200 MeV is released per fission.
Physics Modern Physics Level: Misc Level
What fraction of a sample is left after exactly 5 half - lives?
Physics Modern Physics Level: Misc Level
What is the maximum kinetic energy of an electron emitted in the B-1 emission?
Physics Modern Physics Level: Misc Level
What is the approximate radius of an alpha particle ( 4 2 He)?
