-Which of the following are consistent with the wave-like behavior of light? .Line Spectra • Blackbody Radiation • Refraction • Diffraction • The Photoelectric Effect 2-What is the value of c? O 3.00 x 108 J-s O 6.636 × 10-34 J-s O 3.00 x 108 m/s O 6.02 x 1023 m/s 3-Which of the following are consistent with the wave-like behavior of light? • Blackbody Radiation • Line Spectra • Diffraction • Refraction • The Photoelectric Effect 4-What is the correct value for Planck's constant? O 3.00 x 108 J-s • 6.02 × 1023 m/s O 3.00 x 108 m/s O 6.626 × 10-34 J-s 5-Which regions of the electromagnetic spectrum are higher in frequency than microwaves? [Select all that apply.] • Visible .Infrared • X-Rays

-Which of the following are consistent with the wave-like behavior of light? .Line Spectra • Blackbody Radiation • Refraction • Diffraction • The Photoelectric Effect 2-What is the value of c? O 3.00 x 108 J-s O 6.636 × 10-34 J-s O 3.00 x 108 m/s O 6.02 x 1023 m/s 3-Which of the following are consistent with the wave-like behavior of light? • Blackbody Radiation • Line Spectra • Diffraction • Refraction • The Photoelectric Effect 4-What is the correct value for Planck's constant? O 3.00 x 108 J-s • 6.02 × 1023 m/s O 3.00 x 108 m/s O 6.626 × 10-34 J-s 5-Which regions of the electromagnetic spectrum are higher in frequency than microwaves? [Select all that apply.] • Visible .Infrared • X-Rays

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter29: Introduction To Quantum Physics

Section: Chapter Questions

Problem 35PE: (a) How far away must you be from a 650-kHz radio station with power 50.0 kW for there to be only...

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1-Which of the following are consistent with the wave-like behavior of light? .Line Spectra • Blackbody Radiation • Refraction • Diffraction • The Photoelectric Effect 2-What is the value of c? 0 3.00 × 108 J-s 0 6.636 × 10-34 J-s 0 3.00 × 108 m/s 0 6.02 × 1023 m/s 3-Which of the following are consistent with the wave-like behavior of light? • Blackbody Radiation • Line Spectra • Diffraction • Refraction • The Photoelectric Effect 4-What is the correct value for Planck's constant? 0 3.00 × 108 J-s • 6.02 × 1023 m/s 0 3.00 x 108 m/s 0 6.626 × 10-34 J-s 5-Which regions of the electromagnetic spectrum are higher in frequency than microwaves? [Select all that apply.] • Visible .Infrared •X-Rays • Ultraviolet Gamma Rays •Radio
Which statement/s is/are true? I. White light is a mixture of all visible wavelengths II. An observer sees the color blue, because the object reflects only the blue color. III. Lower than 400 nm, is the UV region in the electromagnetic spectrum IV. Photons absorb or emit energy to or from another material causing transitions of energy levels in its molecule. I, II, III, and IV II, III, and IV I, II, and IV only I, III, and IV
When light with a wavelength of 204 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 2.92 × 10-19 J. Determine the wavelength (in nm) of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface. Number i Units
I Review I Constants I Periodic Table X rays with a wavelength of 0.19 nm undergo first- order diffraction from a crystal at a 57 ° angle of incidence. Part A At what angle does first-order diffraction occur for x rays with a wavelen of 0.12 nm ? Express your answer using two significant figures. ΑΣφ ? = Submit Request Answer
3. دیا Calculate the wavelength (in nm) of a photon whose energy is 3.5 eV. Given, Planck's constant is 6.63 x 10-34 J-s, Speed of light in a vacuum is 3.0 × 108 m/s and 1 eV 1.602 x 10-1⁹ J
2. When light with a wavelength of 218 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.34 x 1019 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface. nm
solid state physics 1) If you know that the Bragg angle of reflection from (111) planes in an aluminum crystal is 19.2°. Calculate the distance between these planes, knowing that the wavelength of the X-rays used is 1.54A, and the crystal structure of aluminum is of the face-centered cubic type. 2) Calculate Avogadro's number given that aluminum has a density of 2.7 g/cm and an atomic weight of 27 ?
What will be the energy associated with a red photon, if the wavelength of the red light is 650 nm? [Hint: Find the frequency of red light first to calculate the energy. Recall: c = .f] A. 650x10° J B. 6.5x10 J C. 4.6x1014 J D. 3.0x10-19 J E. 3.0x1019 J
2. When light with a wavelength of 218 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.28 x 10 J. Determine the wavelength of light that should be used to quadruple the maximum kinetic -19 energy of the electrons ejected from this surface. X 173.7 nm
In a photoelectric-effect experiment conducted, it is observed that current only flows when light of wavelength which is less than 570 nm is being illuminated on metal A.i) Explain what will happen if light of wavelength above 570 nm is used.ii) Determine the work function of metal A.iii) Determine the stopping voltage required if light of wavelength 400 nm is used.
Light Absorption (Photovoltaics / Mertens) 1. What is the photon energy of light at the wavelength λ = 560 nm in eV? (Planck's constant is 6.6 x 10-34 m2 kg / s) 2. What is the penetration depth of light at the wavelength λ = 560nm in c-Si (crystalline Si) and a-Si (amorphous Si)? 3. Light with a wavelength of 600 nm and an irradiance of E= 500 W/m 2 impinges vertically on to a semiconductor of amorphous silicon. At this wavelength the material has a refractive index of 4.6. a. What portion of the light is reflected at the semiconductor surface? b. What thickness and what refractive index should an anti-reflective film possess in an ideal case? Assume SiN is used as an anti-reflective film. What should the thickness of the film be in this case? (you need to look up the refractive index of SIN) 4. Given is a c-Si cell of thickness d = 140 micormeters that is illuminated by light with a strength of E= 1000 W/m 2 ,( a = 100/cm; n = 3.3; λ = 1000 nm). a. How large is the penetration depth…
5. a) A monochromatic light of wavelength 450 nm is incident on a metal surface in a vacuum tube. i. Calculate the energy of photon. ii. If the maximum wavelength of the light to release the electron iii. Calculate the maximum kinetic energy (in electron volts) of the photoelectron emitted with a light of wavelength 450 nm.