The ionization energy for the hydrogen atom is 13.6 eV. What is the energy of a photon that is emitted as a hydrogen atom makes a transition between the n = 6 and n = 4 states?
a. 1.13 eV
b. 0.47 eV
c. 0.09 eV
d. 3.40 eV
e. 6.80 eV
b
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Distant bright snowy mountains appear yellowish because
A) they are far away. B) blue has been scattered away from light reflected from the mountains. C) the color yellow looks just right. D) of nature's wonderful preferences.
You are in a place that is extremely hot and dense. You can't see far because your surroundings are opaque to light. Around you, nuclear fusion is converting carbon into oxygen and other elements. Where are you?
A) You are inside a nuclear power plant on Earth. B) You are in the center of a star very much like our Sun. C) You are in the center of a white dwarf. D) You are in the early universe during the era of nucleosynthesis. E) You are in the center of a massive star near the end of its life.
Components: A displacement vector is 34.0 m in length and is directed 60.0° east of north. Selecting from the choices in the table below, what are the components of this vector?
A. choice 1 B. choice 2 C. choice 3 D. choice 4 E. choice 5
A thermometer registers a change in temperature of 100°F. What change in temperature does this correspond to on the Kelvin Scale?
a. 453 b. 328 c. 180 d. 55.6 e. 24.5