A laser pointer with a power output of 5.00 mW emits red light 1l = 650 nm2. (a) What is the magnitude of the momentum of each photon? (b) How many photons does the laser pointer emit each second?

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A: Write the expression for the power density of photon. Here, H represents the power density, φ…

Q: A 0.840-nm photon collides with a stationary electron. After the collision, the electron moves…

A: we know that,h=6.63×10-34λ=0.840×10-9 mm=9.11×10-31 kg

Q: By Amax Oi the pi LL alls on the same surface?

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Q: A light beam of wavelength 431 nm and intensity 159 W/m^2 shines on a target of area 2.86 m^2 for a…

A: Given data:  Wavelength (λ) = 431 nm Intensity (I) = 159 W/m2 Area (A) = 2.86 m2 Time (t) = 2.12 s…

Q: A 0.844-nm photon collides with a stationary electron. After the collision, the electron moves…

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Q: A light beam of wavelength 679 nm and intensity 211 W/m^2 shines on a target of area 2.71 m^2 for a…

A: wavelength = intensity = area = A = 2.71 m2time = t = 2.23 s

Q: A 0.836-nm photon collides with a stationary electron. After the collision, the electron moves…

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Q: Light of frequency 7.21 x 10“ Hz is incident on a metal surface. Electrons with a maximum speed of…

A: The concept behind this question is for threshold frequency for photoemission of electrons. We have…

Q: A 592 nm laser emits 4.94 x 1019 photons per second, how much total energy (in J) would this…

A: Given Data Wavelength of the photons is λ=592nm=592×10-9 m Number of photons emitted per unit second…

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Q: An 80W light source consumes predictably 80W of electrical power. Suppose that all of this energy is…

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Q: What is the greatest wavelength of light that will cause the emission of photoelectrons from sodium.…

A: Concept used: Photoelectric effect is the process of ejecting out electrons from surface of metal.…

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A: Given data: The produced energy per second is E=4100×40 W=1.6 J Wavelength of the light is…

Q: Far ultraviolet light with a wavelength of 154 nm is incident on an unknown solid surface, which…

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Q: A 100W sodium lamp radiates energy uniformly in all directions. The lamp is located at the centre of…

A: Part (a) : The wavelength of sodium light is 589 nm.  The Energy of a photon is,

Q: The graph below shows the maximum kinetic energy of emitted photoelectrons as a function of the…

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Q: In a Compton scattering experiment, the incident X-rays have a wavelength of 0.2690 nm, and the…

A: To determine the scattering angle θ in a Compton scattering experiment, we use the Compton…

Q: Light of frequency 7.21×1014 Hz is incident on a metal surface. Electrons with a maximum speed of…

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Q: A light beam of wavelength 476 nm and intensity 119 W/m^2 shines on a target of area 2.11 m^2 for a…

A: Given value--- wavelength = 476 nm. intensity = 119 W/m2.  Area = 2.11 m2.  time = 2.75 s. We have…

Q: inetic energy of 2.70 eV. (a) What is the work function of the metal? 5 ev (b) If the photon energy…

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Q: Q. 31: If the energy of photon corresponding to a wavelength of 6000 A is 3.32 x 10-¹J the photon…

A: We are aware that a photon with a wavelength of 6000 Ao has an energy of 3.32×10-19 J.The photon…

Q: photons of energy 4.21 eV are incident on sodium, what is the maximum kinetic energy of the ejected…

A: 1. In a photoelectric effect, the maximum kinetic energy of an ejected electron from the surface of…

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Q: Problem 4: A photon originally traveling along the x axis, with wavelength λ = 0.100 nm is incident…

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Q: A 0.703-nm photon collides with a stationary electron. After the collision, the electron moves…

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Q: A 519 nm laser emits 2.41 x 1019 photons per second, how much total energy (in J) would this…

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Q: Gamma rays are photons with very high energy. How many visible-light photons with a wavelength of…

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