9. Consider green light with a wave length of 530 nanometers (nm).
a) What is its frequency in Hz?
b) What is the energy (in Joules) of a single photon?
c) Suppose you shine the green light on metallic sodium with a work function of 2 eV. Will you see ejected electrons? What will be their kinetic energy? (Recall that 1eV is equivalent to 1.6 *10^-19Joules.)
9. Consider green light with a wave length of 530 nanometers (nm). a) What...
Problem 5. a. What is the energy in joules and electron volts of a photon of 520-nm green light? b. What is the maximum kinetic energy of electrons ejected from calcium by 520-nm green light, given that the binding energy (or work function) of electrons for calcium metal is 2.71 eV?
Problem 5. a. What is the energy in joules and electron volts of a photon of 520-nm green light? b. What is the maximum kinetic energy of electrons ejected from calcium by 520-nm green light, given that the binding energy (or work function) of electrons for calcium metal is 2.71 eV?
Question 1 (1 point) If light with a frequency below the cutoff frequency for a certain metal hits that metal: Question 1 options: electrons will be ejected after the intensity of the light reaches a certain value no electrons will be ejected electrons will be ejected, but will fall back to the metal the light will be re-radiated by the metal I don't know. Question 2 (1 point) One electron-volt is equivalent to Question 2 options: 1 J 1 V...
When light with wavelength 740 nm shines on a particular sheet of metal, it ejects electrons that have a maximum kinetic energy of 0.4 eV . What is the maximum kinetic energy of ejected electrons if we shine light with wavelength 500 nm on the sheet of metal instead? ______ eV
When light with wavelength 740 nm shines on a particular sheet of metal, it ejects electrons that have a maximum kinetic energy of 0.4 eV . What is the maximum kinetic energy of ejected electrons if we shine light with wavelength 380 nm on the sheet of metal instead?
Problem 5. a. What is the energy in joules and electron volts of a photon of 520-nm green light? b. What is the maximum kinetic energy of electrons ejected from calcium by 520-nm green light, given that the binding energy (or work function) of electrons for calcium metal is 2.71 eV? (Note: this question has already been answered by another tutor, but the way they solved the problem was counted wrong by my instructor)
The human eye is most sensitive to green light of wavelength 505 nm . Experiments have found that when people are kept in a dark room until their eyes adapt to the darkness, a single photon of green light will trigger receptor cells in the rods of the retina.1.What is the frequency of this photon?2.How much energy (in joules and eV ) does it deliver to the receptor cells?Answer in the order indicated. Separate your answers with a comma.3.To appreciate...
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....
Problem #4. An E&M wave having wave length of 560. nm hits a surface. Electrons were released without Kinetic energy (cut-off) i.e. this light's energy was just enough to release the electrons without speed. nm IF ANOTHER wave was used to the same surface having wave length of 400. Nm. A. What is the work function of this surface in ev? B. What is maximum kinetic energy of the emitted electrons in eV AND Joules as well as its speed?...
2. Calculate the frequency of a photon of green light with a wavelength of 550 nm V 3. A beam of light has a frequency of 6.29 x 104 Hz. What is the energy per photon of this light?