Find the ratio of the photon frequency of the 8th line of the Paschen series to the photon frequency of the 3rd line of the Balmer series. Given: h = 4.14 x 1015 eV.s 6.63 x 1034 J.s %3D Select one: O a. 0.491 Ob.0.505 O.0.795 Od. 0.779
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- An electron in a Hydrogen atom is in energy level n=7 and drops down into the ground state (n=1). What is the energy of the photon that is emitted in units of eV. Choose the option below that most closely matches your answer. Select one: O a. 13.4 eV O b. 4.3 eV О с. 12.5 eV O d. 7.8 eV O e. 15.2 eVQuestion 9. While most transition metals have work functions corresponding to photon frequencies that are larger (higher) than visible light, alkali and alkaline earth metals have low-energy work functions. For example, calcium has a work function of o = 4.3419×10-19 J. (a) What is the initial state n, for the hydrogen emission lines at visible wavelengths (i.e., those with n = 2) for the lowest-energy photon that would eject an electron from calcium? %3! (b) If the colors of the visible hydrogen emission lines (n; = 3 to n = 6) are red, green, blue and %3D violet, which colors are capable of ejecting the electrons from calcium? (c) The energy of the emitted photon you identified in part (a), is not identical to the workfunction of calcium. Therefore, the electron is ejected from the metal surface with some kinetic energy (i.e., energy is conserved in the photoelectric effect process). What would the velocity of the electron ejected from calcium (in meters per second)?w Policies urrent Attempt in Progress The dissociation energy of a molecule is the energy required to break apart the molecule into its separate atoms. The dissociation energy for a particular molecule is 1.05 × 10-18 J. Suppose that this energy is provided by a single photon. Determine the (a) wavelength and (b) frequency of the photon. (c) In what region of the electromagnetic spectrum (see Figure 24.9) does this photon lie? (a) Number i (b) Number i (c) eTextbook and Media Save for Later AR Units Units LDL > Attempts: unlimited Submit Answer
- A photon can excite a hydrogen atom makes a from the n = (2.0000x10^0) state to the n = (8.00x10^0) state, what is the energy of this photon? Give your answer in the unit if eV with 3 s.f. %3D %3D Note: Your answer is assumed to be reduced to the highest power possible. Your Answer:15 b. Suppose an electron is in a spin state given by x = A(). 8i Find i. the normalization constant A ii. (S.) iii. (S.) and iv. the probability that a measurement of S, will yield h/2.Some of the most powerful lasers are based on the energy levels of neodymium in solids, such as glass, as shown . (a) What average wavelength light can pump the neodymium into the levels above its metastable state? (b) Verify that the 1.17 eV transition produces1.06 μm radiation.