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Determine the following using information obtained from the above plot:

1			Work function of the photo-electron emitting surface Need a Hint?
2			Threshold frequency for the photoelectric effect to occur with this surface Need a Hint?
3			Maximum wavelength of light which will cause electrons to be emitted. Need a Hint?
4			Minimum energy of incident photons which will cause electrons to be emitted Need a Hint?
5			Plank's constant according to the data on this plot. Need a Hint?
6			Maximum kinetic energy of electrons emitted by photons of frequency f = 10.0 × 1014 Hz Need a Hint?
7			Stopping potential of the electrons emitted by photons of frequency f = 10.0 × 1014 Hz Need a Hint?
8			Energy (according to the plot) of a photon of frequency f = 10.0 × 1014 Hz Need a Hint?
9			Additional energy needed by photons of wavelength λ = 10.0 × 10-7 m in order to emit electrons Need a Hint?

A potential difference of 1.00 × 10⁴ V exists between the cathode and anode of an x-ray tube. Determine the following:

10			Maximum kinetic energy of the electrons as they slam into the anode target Need a Hint?
11			Maximum energy of the emitted x-rays Need a Hint?
12			Minimum wavelength of the emitted x-rays Need a Hint?

When 10.0 keV x-rays are incident on a thin target, recoil electrons leave the target with a kinetic energy of 60.0 eV.

13			Wavelength of the scattered x-rays Need a Hint?
14			Angle of scatter for the x-rays Need a Hint?
15			Angle of departure for the recoil electrons Need a Hint?
16			Momentum of the recoil electrons Need a Hint?

Determine the following for a hydrogen atom:

17			Radius of the n = 3 orbit Need a Hint?
18			Speed of an electron in the n = 3 orbit Need a Hint?
19			Angular speed of an electron in the n = 3 orbit Need a Hint?
20			Kinetic energy of an electron in the n = 3 orbit Need a Hint?
21			Centripetal force experienced by an electron in the n = 3 orbit Need a Hint?
22			Electric potential energy of an atom in the n = 3 state Need a Hint?
23			Angular momentum of an electron in the n = 3 orbit Need a Hint?
24			Energy of the photon emitted when the atom goes from the n = 3 to the n = 2 state Need a Hint?
25			Angular momentum of the photon emitted when the atom goes from the n = 3 to the n = 2 state Need a Hint?
26			Wavelength of the photon emitted when the atom goes from the n = 3 to the n = 2 state Need a Hint?

Use the energy level diagram for doubly ionized Lithium shown in the figure below to determine the following:

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27			Ionization potential Need a Hint?
28			Energy of the atom in the ground state Need a Hint?
29			Binding energy of the atom in the second excited state Need a Hint?
30			Excitation energy of the atom in the second excited state Need a Hint?
31			Energy of the photon emitted when the electron jumps from the n = 3 to the n = 2 orbit Need a Hint?
32			Wavelength of the photon emitted when the electron jumps from the n = 3 to the n = 2 orbit Need a Hint?
33			Maximum number of different energy photons that could be emitted by numerous atoms going from the n = 4 to the n = 1 state Need a Hint?
34			Frequency of the photon that must be absorbed in order to cause the electron to jump from the n = 3 to the n = 4 orbit Need a Hint?