4. Light of a given wavelength is used to illuminate the surface of a metal, however,...
4. Light of a given wavelength is used to illuminate the surface of a metal, however, no photoelectrons are emitted. In order to cause electrons to be ejected from the surface of this metal you should
(A) use light of a longer wavelength.
(B) use light of a shorter wavelength.
(C) use light of the same wavelength but increase its intensity.
(D) use light of the same wavelength but decrease its intensity.
Homework Answers
In order to cause electrons to be ejected from the surface of this metal you should use light of a shorter wavelength.
i.e., option(B) is correct.
Add Answer to:
4. Light of a given wavelength is used to illuminate the surface
of a metal, however,...
Metal A has a higher work function than metal B. The lowest frequency of light that...
Metal A has a higher work function than metal B. The lowest frequency of light that will cause electrons to be emitted from metal B is fB Which of the following is true: Select one: a. light of any frequency will cause photoelectrons to be emitted from metal A, but only above a threshold intensity determined by the work function b. light of any frequency will cause photoelectrons to be emitted from metal A, but the lower the frequency, the...
When ultraviolet light with a wavelength of 400nmfalls on a certain metal surface, the maximum kinetic...
When ultraviolet light with a wavelength of 400nmfalls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10eV . What is the maximum kinetic energy K0 of the photoelectrons when light of wavelength 270nm falls on the same surface?
When ultraviolet light with a wavelength of 400 nmfalls on a certain metal surface, the maximum...
When ultraviolet light with a wavelength of 400 nmfalls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV . What is the maximum kinetic energy K0 of the photoelectrons when light of wavelength 270 nmfalls on the same surface? Use h = 6.63×10?34J?s for Planck's constant and c = 3.00×108m/s for the speed of light and express your answer in electron volts. Thank you
2. When light with a wavelength of 223 nm is incident on a certain metal surface,...
2. When light with a wavelength of 223 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.30 × 10 − 19 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface.
When light with a wavelength of 216 nm is incident on a certain metal surface, electrons...
When light with a wavelength of 216 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.35 × 10-19 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface. in m/s with 3 sig figs please
!) Light with a wavelength of (465 + A) nm is incident on a metal surface...
!) Light with a wavelength of (465 + A) nm is incident on a metal surface with a work function of (1.25 + (0.1)(B)) eV. Find the maximum kinetic energy of the emitted photoelectrons. Give your answer in eV and with 3 significant figures. 2) Consider electrons accelerated using a potential difference of (12.5 + A + B) kV before hitting a metal surface. Calculate the minimum wavelength of the emitted x-rays. Give your answer in pm and with 3...
Light with a wavelength of 145 nm is shined on to the surface of platinum metal....
Light with a wavelength of 145 nm is shined on to the surface of platinum metal. What is the maximum speed of the ejected photoelectrons? The work function of platinum is 6.35 eV. a) 7.15E5 m/s b) 6.32E5 m/s c) 4.35E4 m/s d) 8.83E5 m/s e) 0 m/s. No photoelectrons are ejected.
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons...
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons are ejected from the metal's surface. What is the maximum speed of the ejected photoelectrons? The work function of potassium metal is 2.30 eV. 7.15E5 m/s 9.51E6 m/s 6.32E5 m/s 8.99E5 m/s 1.54E6 m/s
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons...
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons are ejected from the metal's surface. What is the maximum speed of the ejected photoelectrons? The work function of potassium metal is 2.30 eV. 7.15E5 m/s 9.51E6 m/s 6.32E5 m/s 8.99E5 m/s 1.54E6 m/s
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the...
When ultraviolet light with a wavelength of 400 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is 1.10 eV .What is the maximum kinetic energy K0 of the photoelectrons when light of wavelength 310 nm falls on the same surface? Use h = 6.63×10−34 J⋅s for Planck's constant and c = 3.00×108 m/s for the speed of light and express your answer in electron volts.
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons are ejected from the metal's surface. What is the maximum speed of the ejected photoelectrons? The work function of potassium metal is 2.30 eV. 7.15E5 m/s 9.51E6 m/s 6.32E5 m/s 8.99E5 m/s 1.54E6 m/s
Light with a wavelength of 137 nm is shined on the surface of potassium metal. Photoelectrons are ejected from the metal's surface. What is the maximum speed of the ejected photoelectrons? The work function of potassium metal is 2.30 eV. 7.15E5 m/s 9.51E6 m/s 6.32E5 m/s 8.99E5 m/s 1.54E6 m/s
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