A beam of white light (containing frequencies ranging from 4.00 × 1014 Hz to 7.90 × 1014 Hz) is incident on a sodium surface, which has a work function of 2.28 eV.
a. What is the range of frequencies in this beam of light for which electrons are ejected from the sodium?
b. What is the maximum kinetic energy of the photoelectrons ejected from the sodium?
Answer: (a) From 5.50 × 1014 Hz to 7.90 × 1014 Hz (b) 1.59 × 10-19 J
A beam of white light (containing frequencies ranging from 4.00 × 1014 Hz to 7.90 ×...
Review Part A Electromagnetic waves, with frequencies ranging from 4.00 x 1014 Hz to 9.00 x 101 Hz, are incident on an aluminum surface. The work function of aluminum is 4.28 eV 16 Find the maximum kinetic energy of electrons ejected from this surface Submit Request Answen Part B Find the range of frequencies for which no electrons are ejected. O 4.00 x 1014Hz< f<2.06 x 1015 Hz 0 1.03 x 1015 Hz < f < 9.00 x 1016 Hz...
White light (ranging in wavelengths from 380 to 750 nm) is incident on a metal with work function W_o = 2.42 eV. (a) What is the maximum kinetic energy of the electrons emitted from the surface? (b) For what range of wavelengths (from l_min to l_max) will NO electrons be emitted?
Sodium metal has a work function of 2.28 eV. (a) At what wavelength of incident light will electrons be ejected from the material? (b) If light of wavelength 450 nm is incident on the sodium, determine the maximum kinetic energy of the ejected electrons 13.4
The photoelectric effect demonstrates the quantized nature of light. a) What is the kinetic energy and speed of an electron ejected from a Na surface with work function 2.28 eV when illuminated by light of wavelength i) 410 nm ii) 600 nm? b) What is the critical frequency fo of incident light below which no electrons are ejected? c) Sketch a graph of kinetic energy of the ejected electron vs. frequency of incident light for the photoelectric effect in sodium....
Electrons are ejected from a metallic surface with speeds ranging up to 3.90x10^5 m/s when light with a wavelength of λ= 705 nm is used. 1.Find the work function of the surface in units of eV. (A) 1.33 (B) 2.67 (C) 3.86 (D) 4.38 (E) 5.38 2.Find the cutoff frequency for this surface (in units of 10^14 Hz). (A) 1.33 (B) 2.67 (C) 3.21 (D) 4.38 (E) 5.38
Infrared radiation has frequencies from 3.0×1011 to 3.0×1014 Hz, whereas the frequency region for visible light is 4.3×1014 to 7.5×1014 Hz. We can say that: 1. The speed of infrared radiation is ____ (higher than, lower than, the same as) visible light. 2. The wavelength of infrared radiation is ____ (higher than, lower than, the same as) visible light.
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Light with a frequency of 2.47×10152.47×1015 Hz ejects electrons from the surface of platinum, which has a work function of 6.53 eV. What is the minimum de Broglie wavelength of the ejected electrons?
Light with a frequency of 1.75×10^15 Hz ejects electrons from the surface of aluminum, which has a work function of 4.28 eV. What is the minimum de Broglie wavelength of the ejected electrons?
6. Light with a frequency of 2.47 x 1015 Hz ejects electrons from the surface of calcium, which has a work function of 2.87 eV. What is the minimum de Broglie wavelength of the ejected electrons? 4.52e-10 nm