If a hydrogen atom in the ground state absorbs a 20.0 eV photon, what kinetic energy of the electron results?
A. this cannot happen
B. 20.0 eV
C. 13.6 eV
D. 6.40 eV
E. 33.6 eV
D. 6.40 eV
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Thin Lenses: Which of the following terms describe lenses that are thinner at the center than at the edges? (There could be more than one correct choice.)
A. converging lenses B. diverging lenses C. concave lenses D. convex lenses
Waves arriving at a fixed boundary are
a. neither reflected nor inverted. b. reflected but not inverted. c. reflected and inverted. d. inverted but not reflected.
Define absorption and emission lines
What will be an ideal response?
Find the frequencies of the first three harmonics of a 1.0-m long string which has a mass per unit length of 2.0 × 10?3 kg/m and a tension of 80 N when both ends are fixed in place.
What will be an ideal response?