What is the energy required to remove the electron from a hydrogen atom in the n = 11 state?
A) 0.112 eV
B) 1.24 eV
C) 13.5 eV
D) 12.4 eV
E) 0.141 eV
A
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During a solar eclipse, if you moved into the__________, you would be in partial shadow and would also see part of the Sun peeking around the edge of the Moon
A) umbra B) south point C) penumbra D) north point
A hydrogen atom emits a photon as it makes a transition from the n = 4 state to the n = 3 state. The energies of these two states are –0.9 eV and –1.5 eV, respectively. (a) What is the energy of the photon? (b) What is its frequency?
Diffraction grating ?1 has half the lines/cm that diffraction grating ?2 does. When used with a certain wavelength of light, both gratings give first-order maxima. Which of the following statements is true for the same wavelength of light
a. Both gratings must also give second-order maxima. b. Grating ?1 must give a second-order maximum. c. Grating ?2 must give a second-order maximum. d. It is possible that neither grating gives a second-order maximum.
A liter has a volume of ______________ cubic centimeters
Fill in the blank(s) with correct word