How do you calculate the stopping voltage and Ek (Joules) and Ek (eV) from the wavelength and frequency? Please give an example
How do you calculate the stopping voltage and Ek (Joules) and Ek (eV) from the wavelength...
Please calculate stopping voltage, Ek(Joules), and Ek (eV) of 125 nm/ 2.39x10^15 Hz
Calculate the energy in joules and eV of a 3.38 Angstrom wavelength
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?...
What is the energy in joules and eV of a photon in a radio wave from an AM station that has a 1500 kHz broadcast frequency? ------------ J ------------ eV
What is the energy in joules and eV of a photon in a radio wave from an AM station that has a 1385 kHz broadcast frequency? J eV
1.An aluminum cathode has a work function Φ=4.1eV. A stopping voltage Vs=1.7 V is applied between the anode and cathode. What is the maximum wavelength of the photon necessary to observe a current across the photoelectric tube? (8pts) [Answer in nm] 2.In an ion beam experiment, He+ ions are accelerated between two electrodes in a vacuum tube to generate a beam of high-energy ions. The ions reach kinetic energy Ek = 4·10-19 Joules and their mass is m=6.65·10-27 kg. What...
What is the energy in joules and eV of a photon in a radio wave from an AM station that has a 1400 kHz broadcast frequency?
Energy in Joules from a wavelength (um) How much energy is associated with an Infrared Photon with wavelength of 5.40 um (micrometer)? Please answer in J (Joules) and scientific notation
***Please help fill in the table finding KE...& the following questions Metal Wavelength (nm) Frequency (Hz) f Stopping Voltage (V) KE (J) Sodium 125 2.4*1015 -7.58 Sodium 300 1.0*1015 -1.79 Sodium 450 6.7*1014 -0.45 Sodium 538 5.57 1014 -0.01 Sodium 540 5.55*1014 0 a. Describe what happens to the stopping voltage for wavelengths greater than or equal to 540 nm. Based upon your knowledge of the atom, hypothesize an explanation for such behavior. b. At 540nm no electrons are ejected....
Given the following data Bright side Color Frequency Stopping voltage (in V) Yellow 5.19 x 1014 0.79 Green 5.49 x 1014 0.90 Blue 6.88 x 1014 1.51 Blue/Violet 7.41 x 1014 1.66 Dark violet 8.21 x 1014 1.90 Determine the threshold frequency for this apparatus. What is the associated threshold wavelength (the longest wavelength which releases electrons from the apparatus)? Quote your result with uncertainty. (You may need to review the rules for propagating uncertainty (I know how to do...