Answered: A particular metal is illuminated by UV… | bartleby

Related questions

Question

A particular metal is illuminated by UV photons of wavelength 210 nm, and electrons up to 1.25 eV are emitted from the surface. What is the maximum KE of photoelectrons emitted when the UV photons are, instead, 175 nm in wavelength?
A. 1.18 eV
B. 2.44 eV
C. 5.90 eV
D. 7.09 eV

Expert Solution

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

Helium was first discovered when astronomers viewed the spectrum from the Sun and could not associate absorption lines associated with any terrestrial element. One wavelength that was strongly absorbed was 587.5 nm (1 nm = 1.0×10-9 m). What is the energy associated with this wavelength of light? a. 1.06 eV (or 1.70×10-19 J) b. 0.943 eV (or 1.51×10-19 J) c. 2.11 eV (or 3.38×10-19 J) d. 0.472 eV (or 7.57×10-20 J)
If a photon of wavelength 0.0665 nm hits a free electron and is scattered at an angle of 35◦ from its original direction, findat. the change in wavelength of this photon,b. the wavelength of the scattered photon,vs. the change in energy of the photon (is it a loss or a gain?), and d. the energy gained by the electron.
Photons of a certain infrared light have an energy of 1.70x10 J. (a) What is the frequency of this IR light? Hz (b) Use A = c/f to calculate its wavelength in nanomneters. nm
A photoelectric effect is observed in a particular metal when a maximum wavelength of 700 nm is used. a.Determine the work function. b.What is the stopping potential of the electrons if a wavelength of 500 nm is used instead? c.Graph the maximum kinetic energy of the photoelectrons as a function of the light illuminated over this metal.
0.2 eV 0.9 eV 1.1 eV A metal with a work function of 3.5 electron volts is exposed to photons of energy 3.7 electron volts. What is the maximum kinetic energy of the emitted photoelectrons? 7.7 eV
An isolated atom of certain element emits light of wavelength 529 nm when the atom falls from its sixth excited state into its third excited state. The atom emits a photon of wavelength 422 nm when it drops from its seventh excited state into its third excited state. frind wavelength of the light radiated when the atom makes a transition from its seventh to its sixth excited state, in um. a. 21 b. 2.09 c. 2086.34 d 0.0209 e. 208. 63
If a metal has a work function 4.3 eV what is the minimum frequency for photo-emission?A. 3.5 x 108 HzB. 3.0 x 1010 HzC. 10.0 x 108 HzD. 1.04 x 1015 HzE. 1.0 Hz
In the photoelectric-effect experiment, as illustrated by the figure, a current is measured while light is shining on the cathode. But this does not appear to be a complete circuit, so how can there be a current? Explain.
An electron has a wavelength of 400 nm (the same as blue light). A. What is the electron’s momentum? B. What’s the minimum uncertainty in the electron’s position if its uncertainty in its momentum is 10-28 kg m/s? Compare this value to its wavelength.