An electron in the ground state of hydrogen absorbs a photon with wavelength 103 nm, and ends up in a state described by quantum numbers n, l, m_l, m_s. Which of the following is not a possible value for these quantum numbers? a. I=3
b. m_l=2
c. m_l=0
d. I=0
e. m s=-1/2

J. j. thomson’s experiment disproved the theory that an atom

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants