The spacing between atomic planes in a crystal is 0.110 nm. 12.0 keV x rays are diffracted by this crystal. What is the angle of second-order diffraction?

Q: What is the mass of a small car in grams, if its de Broglie wavelength is 4.198×10-38 m m when it is…

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Q: Electrons in a photoelectric effect experiment emerge from a copper surface (E0 = 4.65 eV) with a…

A: work function of a copper surface (w) = 4.65 eV maximum kinetic energy of the photoelectrons (K.E) =…

Q: mple 3.1: When a copper surface is illuminated by the radiation of wavelength λ = 2537 A from a…

A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…

Q: 3. Light of wavelength 304.2 nm illuminates a metal surface whose cutoff wavelength is 352.8 nm.…

A: Einstein's photoelectric equation, KEmax = E - W E = hν = hc / λ = 1240/304.2 = 4.076 ev

Q: When UV light of wavelength 255 nm falls on a metalsurface, the maximum kinetic energy of emitted…

A: incident wavelength = 255 nm  Kinetic energy = 1.4 eV

Q: Barium has a work function of 2.48 eV. What is the maximum kinetic energy of electrons if the metal…

A: Given:- work function (W) = 2.48 eV speed of light(c) = 3x10^8 m/s plank's constant (h) =…

Q: X-rays of wavelength 10.0 pm are scattered from a target. the maximum wavelength presents in the…

A: Wavelength (λ)= 10pm  Angle is 45°  h/mc = 2.426pm

Q: Tellurium has a work function of 4.95 eV. What is the minimum frequency of light needed to eject…

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Q: X rays with a wavelength of 0.085 nm diffract from a crystal in which the spacing between atomic…

A: Using Bragg's law, nλ=2dsinθ Maximum diffraction orders are observed when θ=90o.

Q: Light of wavelength 191 nm is shone on copper, which has a work function (or binding energy) of 4.94…

A: The maximum kinetic energy of the electrons can be given by Kmax=hf-ϕ Also, Kmax=12mvmax2

Q: Calculate the minimum - wavelength x - ray that can be produced when a target is struck by an…

A: Write the expression for minimum wavelength of the X ray .

Q: A 26.4 eV electron has a 0.239 nm wavelength. If such electrons are passed through a double slit and…

A: Wavelength of the electron λ = 0.239 nm = 0.239×10-9m The angle between the original direction and…

Q: What are the maximum electron speed and the stopping potential if sodium is illuminated with light…

A: The maximum speed that the photoelectron can have, can be obtained from the photoelectric equation…

Q: An atom initially in an energy level with -2.59 ev emits a photon that has wavelength 480 nm. What…

A: Given data The initial energy level of the atom is Eo = -2.59 eV The wavelength of the photon…

Q: What is the de Broglie wavelength of a neutron (m = 1.67 x 10-27 kg) travelling at 6.5 x 104 m/s?

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Q: A 245 W bulb produces monochromatic U-V light of frequency 1.34x1015 Hz. If the efficiency of the…

A: Power = 245 efficiency = 24% Thus , effective power = 0.24 * 245 = 58.8 W

Q: An atom initially in an energy level with -2.59 eV emits a photon that has wavelength 480 nm. What…

A: Energy emitted, E=hcλGiven that, λ=480 nmE=4.136×10-15×3×108480×10-9 eVE=2.585 eV

Q: When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface, the maximum…

A: When light of particular wavelength incident on metal surface, it will eject electrons from metal…

Q: An electron microscope passes 1.00-pm-wavelength electrons through a circular aperture 2.00 µm in…

A: Wavelength is λ=1.00 pm= 1.00×10-12 m Diameter of the circular aperture is, D = 2.00 μm=2.00×10-6 m…

Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. At what kinetic energy…

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Q: The electrons in a beam are moving at 18 m/s. (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ∙ s)…

A: Speed of electron, v=18 m/s Mass of electron, m=9.11 × 10-31 kg

Q: A beam of red light has wavelength of 700 nm. How much energy does a photon of red light have in (a)…

A: Given data The wavelength of the beam of red light is given as λ=700 nm.   a) Now, the energy of…

Q: X rays with a wavelength of 0.0700 nm diffract from a crystal. Two adjacent angles of x-ray…

A: Write the formula for the x-ray diffraction.

Q: A detector measured the kinetic energy of an electron to be K=10~keV. The detector manufacturer…

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Q: An atom initially in an energy level with -2.59 eV emits a photon that has wavelength 480 nm. What…

A:

Q: A single beam of electrons shines on a single slit of width 8.7nm. A diffraction pattern (of…

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Q: When light of wavelength 440 nm strikes a metallic surface, electrons are released from the surface…

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Q: What is the maximum wavelength of light, in nm, that is capable of knocking electrons off a platinum…

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Q: A clean nickel surface is exposed to light whose wavelength is 235 Nm. What is the maximum speed of…

A: Given data The wavelength of the nickel surface is given as λ=235 nm. The work function of Nickel…

Q: Barium has a work function of 2.48 eV. What is themaximum kinetic energy of electrons if the metal…

A: Given:-Barium has a function of work (W) =2.48 eV             UV light of wavelength λ= 365 nm…

Q: An electron microscope passes 1.00-pm-wavelength electrons through a circular aperture 2.00 μm in…

A: Given:  Wavelength = 1 pm = 1 x 10-12 m  diameter of aperture, d = 2 micrometer = 2 x 10-6 m

Q: A photon of wavelength 200 nm strikes a metal and ejects an electron with a velocity of 3.4x10^5…

A: The emission of electrons from the surface of a metal when photons hit its surface, is known as the…

Blackbody

Q.5 A blackbody radiates how much energy when the temperature of the body is elevated?