The difference between the "ground state" and an "excited state" for a hydrogen atom is
A) the atom can radiate when it is in an excited state, but not when it is in a ground state.
B) the excited state has more energy.
C) Both of the above.
D) a ground state's matter field is a standing wave but an excited state's matter field is not a standing wave.
E) All of the above.
C
You might also like to view...
Carnot Engine: A coal-fired plant generates 600 MW of electric power. The plant uses 4.8 × 106 kg of coal each day, and the heat of combustion of coal is 3.3 × 107 J/kg. The steam that drives the turbines is at a temperature of 300°C, and the exhaust water is at 37°C.(a) What is the overall efficiency of the plant for generating electric power?(b) How much thermal energy is exhausted each day?(c) Using the same heat reservoirs, what is the maximum possible efficiency for a heat engine?
What will be an ideal response?
A nearsighted person has a far point that is 4.2 m from his eyes. What focal length lenses must he use in his contact lenses to allow him to focus on very distant mountains?
A) -4.8 m B) -5.2 m C) 4.2 m D) -4.2 m E) 5.2 m
Starting from rest at t = 0, a 5.0-kg block is pulled across a horizontal surface by a constant horizontal force having a magnitude of 12 N. If the coefficient of friction between the block and the surface is 0.20, at what rate is the 12-N force doing work at t = 5.0 s?
a. 0.13 kW b. 0.14 kW c. 0.12 kW d. 26 W e. 12 W
A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
a. 2.4 J b. 9.6 J c. 5.4 J d. 0.6 J e. 6.0 J