Q.1/ Prove that: ni = NcNy e Eg 2KT Using Eg = Ec- Ev
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Q: Eg Q.1/ Prove that: ni = NcNy e 2КТ Using Eg = Ec- Ev
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- O 36 Sulfur (S) has an atomic number of 16. What is its electron configuration? O 1s 2s 2p°3s-3p O 1s°25-2p°3s°3p O 1s252p 3s²3d* O 1s°252p°3s²3p²A USATestprep, LLC - Online State t x odules/questions/qq.php?testid=1745&assignment_id3D47667397&strand=8721&element=73561&totalQuestions=.. Wages - Prote. ne to Beta PRACTICE I HELP JULIE Y GIA RESS GNMENTS ASSIGNMENT 1 23 4S 89 10 Save Submit Two identical charges are separated by a distance d. If the distance between them is increased to 3d, what will happen to the force of repulsion between them? es ) A) It wilt be one-ninth the original force. B) It will be one-third the original force. C) It will be nine times the original force. D) It will be three times the original force. Electrical and Magnetic Forces Regular Calc15 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.
- If you are shining light on a Pt electrode and no electrons are emitted, what do you have to do to generate electrons? Decrease the wavelength of the light to increase the energy of the photons to emit electrons Electrons can not be emitted from Pt because like any other noble metal it does not react, even under light exposure (unlike other metals, e.g. Na, Sr or Cu) Increase the wavelength of the light to increase the energy of the photons to emit electrons Wait longer times or increase the intensity of the light source, since the energy of the absorbed light is not high enough to emit electrons from Pt surfaceThe observed fluorescence lifetime in the absence of a quencher is 1.4 ns. In the presence of a quencher the fluorescence lifetime is 0.8 ns. Calculate the quenching efficiency. which is the ratio of the f luorescence quantum yieldsin the presence and absence of the quencher. φF/φF,0.The threshold frequency of a polished metal surafce is 8.80 x1014Hz. The work function of the surface is? _eV