Each side of a metal plate is illuminated by light of different wavelengths. The left side...
Each side of a metal plate is illuminated by light of different wavelengths. The left side is illuminated by light with λ0 = 500 nm and the right side by light of unknown λ. Two electrodes A and B provide the stopping potential for the ejected electrons. If the voltage across AB is VAB=1.2775 V, what is the unknown λ?
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Each side of a metal plate is illuminated by light of different
wavelengths. The left side...
Each side of a metal plate is illuminated by light of different wavelengths. The left side...
Each side of a metal plate is illuminated by light of different wavelengths. The left side is illuminated by light with 10 = 500 nm and the right side by light of unknown 2. Two electrodes A and B provide the stopping potential for the ejected electrons. If the voltage across AB is VAB=1.2775 V, what is the unknown 2? Metal slab A Radiated by 500 nm B Radiated by unknown wavelength 970.65 nm Vs, A Vs,B 470.65 nm 1031.2...
1) Light of wavelength 310nm is shined on a metal with work function = 1 eV....
1) Light of wavelength 310nm is shined on a metal with work function = 1 eV. What will be the maximum kinetic energy of the emitted electrons? 2) Light is shined on a metal with work function 2.0 eV, and electrons are emitted creating a photocurrent. When a decelerating voltage of magnitude 1.0 V is applied, the current goes to zero (i.e. the magnitude of the stopping voltage is 1V). What is the wavelength (in nm) of the incoming light?...
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light...
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light from a 3 mW laser. How many photons per second are emitted by the laser? 4.0909E15 photons/s Only a small fraction of these photons can interact with electrons at the surface. Suppose this fractional efficiency is 0.00031%. What is the current in the detector assuming all the emitted electrons are captured? пA Note that current is charge(in Coulombs) per second. The charge of one...
PHYS-1200/1250 Lab Manual Section Name 2) Return the simulation to (400 nm, Sodium target, Intensity 100%,...
PHYS-1200/1250 Lab Manual Section Name 2) Return the simulation to (400 nm, Sodium target, Intensity 100%, Voltage=0V). Click on the box to enable graphing of the current vs battery voltage. Sweep the battery voltage from -8 to +8 V. Rescale the plot on the screen so you can clearly see the behavior, a) Sketch the plot in the box to the right. b) Circle the point that corresponds to the stopping potential c) Why do you think the current stops...
1. Figure G: The ideal battery has an emf of 14 V. What is the current...
1. Figure G: The ideal battery has an emf of 14 V. What is the current (A) in R a) 0.200 D0.250 b) 1.00 g) 0.100 c)0.500 h)0.235 2. Figure C shows, in cross section, a spherical conducting shell that surrounds a particle of charge -2e. The shell d) 0.667 i) 1.23 e) 0.750 has a net charge of -6e. What is the magnitude (N/C) of the electric field at point P, at distance2.00 m from the j)0.820 center of...
Please read the article bellow and discuss the shift in the company's approach to genetic analysis....
Please read the article bellow and discuss the shift in the
company's approach to genetic analysis. Please also discuss what
you think about personal genomic companies' approaches to research.
Feel free to compare 23andMe's polices on research with another
company's. Did you think the FDA was right in prohibiting 23andMe
from providing health information?
These are some sample talking points to get you thinking about
the ethics of genetic research in the context of Big Data. You
don't have to...
Each side of a metal plate is illuminated by light of different wavelengths. The left side is illuminated by light with 10 = 500 nm and the right side by light of unknown 2. Two electrodes A and B provide the stopping potential for the ejected electrons. If the voltage across AB is VAB=1.2775 V, what is the unknown 2? Metal slab A Radiated by 500 nm B Radiated by unknown wavelength 970.65 nm Vs, A Vs,B 470.65 nm 1031.2...
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light from a 3 mW laser. How many photons per second are emitted by the laser? 4.0909E15 photons/s Only a small fraction of these photons can interact with electrons at the surface. Suppose this fractional efficiency is 0.00031%. What is the current in the detector assuming all the emitted electrons are captured? пA Note that current is charge(in Coulombs) per second. The charge of one...
PHYS-1200/1250 Lab Manual Section Name 2) Return the simulation to (400 nm, Sodium target, Intensity 100%, Voltage=0V). Click on the box to enable graphing of the current vs battery voltage. Sweep the battery voltage from -8 to +8 V. Rescale the plot on the screen so you can clearly see the behavior, a) Sketch the plot in the box to the right. b) Circle the point that corresponds to the stopping potential c) Why do you think the current stops...
1. Figure G: The ideal battery has an emf of 14 V. What is the current (A) in R a) 0.200 D0.250 b) 1.00 g) 0.100 c)0.500 h)0.235 2. Figure C shows, in cross section, a spherical conducting shell that surrounds a particle of charge -2e. The shell d) 0.667 i) 1.23 e) 0.750 has a net charge of -6e. What is the magnitude (N/C) of the electric field at point P, at distance2.00 m from the j)0.820 center of...
Please read the article bellow and discuss the shift in the
company's approach to genetic analysis. Please also discuss what
you think about personal genomic companies' approaches to research.
Feel free to compare 23andMe's polices on research with another
company's. Did you think the FDA was right in prohibiting 23andMe
from providing health information?
These are some sample talking points to get you thinking about
the ethics of genetic research in the context of Big Data. You
don't have to...
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