An electron accelerates from the  rest through  a potential difference of 2.00 kV.  What is itsde Broglie  wavelength at the end of its acceleration?

Q: An electron and a proton have the same kinetic energy. Which has the greater de Broglie wavelength?

A: The expression for the de Broglie wavelength is,

Q: What is the wavelength of an electron accelerated through a 30.0-kV potential, as in a TV tube?

A: Formula of wavelength in terms of potential is as follows: λ=h2meeV…

Q: In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 2.8 eV. When the…

A: (a) Using Photoelectric equation, KEmax=hcλ-ϕ0 When the wavelength is increased by 50%,…

Q: What is the wavelength of a photon that has the same momentum as an electron moving with a speed of…

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Q: As an electron in a one-dimensional box of length 0.600 nm jumps between two energy levels, a photon…

A: Given: The length of box is 0.600 nm. The energy of 8.36 eV.

Q: Electrons striking the back of a conventional TV screen travel at a speed of about 2.1 ✕ 107 m/s.…

A: Given data: Speed of electrons (v) = 2.1  × 107 m/s Required: De Broglie wavelength in nm

Q: An electron is accelerated from rest through a potential difference so that the de broglie…

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Q: Electrons are accelerated from rest through an 8000 V potential difference. By what factor would…

A: Given: The potential difference in the first case is 8000 V. The potential difference in the second…

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: Singly charged sodium atoms are accelerated through a potential difference of 210 V. (a) What is the…

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Q: Find the de Broglie wavelength of a 1500kg car when its speed is 80km/h. How significant are the…

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Q: An electron, an α-particle, and a proton have the same kinetic energy. Which of these particles has…

A: The expression for the de-Broglie wavelength is,

Q: Find the ratio of de-Broglie wavelengths associated with two electrons accelerated through 25 V and…

A: The de Broglie wavelength in terms of potential is given by  λ =12.27VAo

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: A proton is moving with a speed of v = 1.20 x 10° m/s. What is its de Broglie wavelength (in m)?…

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Q: A quantum bomb of mass M at rest explodes into two fragments of mass m1 and m2, what is the ratio…

A: Initial mass of the bomb = M mass of the two fragments = m1 and m2Initial velocity of the bomb = 0…

Q: What is the de Broglie wavelength of an electron accelerated from rest through a potential…

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Q: Use de Broglie wavelength of a relativistic particle, compute the wavelength of a 1 MeV electron.

A: Given The energy of the Electron is E=1 MeV. Convert energy of 1 MeV to J, E= 1× 106 eV.  = 106…

Q: At what speed must a proton travel in order to have the same de Broglie wavelength as an electron…

A: In this question we have to answer how fast must a proton travel in order to have the same de…

Q: The work function for a certain metal is 4.2 eV. Will this metal give photoelectric emission for…

A: Given:  Work function, W = 4.2 eV  wavelength = 330 nm

Q: Write the expression for the de Broglie wavelength associated with a charged particle having charge…

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Q: The de Broglie wavelength of an proton with a kinetic energy of 960 MeV is. .. O 740 fm O 750 pm O…

A:

Q: Barium has a work function of 2.48 eV. 1. a) What is the maximum kinetic energy of electrons if the…

A: (a) (given)   Work function ϕ Barium = 2.48 eV Wavelength λ of UV light = 365 nm…

Q: What is the de Broglie wavelength of (a) an electron accelerated from rest by a potential difference…

A: a) The kinetic energy of the electron which is accelerated is given by K=eV=pe22me…

Q: An electron first has an infinite wavelength and then after it travels through a potential…

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

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Q: What is the de Broglie wavelength of a particle, such as an electron, at rest? O A. Davisson and…

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Q: A particle A of mass 'm' and charge 'q' is accelerated by a potential difference of 50 V. Another…

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Q: . Is it possible for the de Broglie wavelength of a “particle”to be greater than the dimensions of…

A: De Broglie wavelength of a particle can be smaller or can be larger than the linear dimension of the…

Q: Light of wavelength 280 nm strikes a metal whose workfunction is 2.2 eV. What is the shortest de…

A: Given: The wavelength of light is 280 nm. The wavefunction is 2.2 eV.

Q: Through what minimum potential difference must an electron in an x-ray tube be accelerated so that…

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Q: During a certain experiment, the de Broglie wavelength of an electron is 460 nm = 4.6 ✕ 10−7 m,…

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Q: Calculate the de Broglie wavelengths of (a) an electron moving with speed 1.0×106m s-1and (b) a…

A: (a)speed of electron,(v)=1 x 106 m/sec ----(1) [Given] Plank's constant,(h)=6.6 x 10-34 kg-m2/sec…

Q: A 0.001 60 - nm photon scatters from a free electron. For what (photon) scattering angle does the…

A: If the scattered photon has energy equal to the kinetic energy of the recoiling electron, the energy…

Q: During a certain experiment, the de Broglie wavelength of an electron is 500 nm = 5.0 ✕ 10−7 m,…

A: de-Broglie wavelength of a matter wave is given by the relation λ=hph is Planck's constantp is the…

Q: The wavelength of a red spectral emission line is 670.0 nm. At what kinetic energy (in J) would an…

A: Wavelength ,  λ = 670 nm = 670 x 10-9 m To find = Kinetic energy at which an electron will have the…

Q: How fast does an electron have to go to have the a de Broglie wavelength of 2.56 nm? Please give…

A: We Know,π = hmv

Q: The cutoff wavelength for the photoelectric effect in a certain metal is 254 nm. (a) What is the…

A: The solution of question number 1,is

Q: The de Broglie wavelength of an proton with a kinetic energy of 960 MeV is. . O 750 pm O 750 fm O…

A:

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: The de Broglie wavelength of a 60 g golf ball is 4.28x10−34 m. What is its speed?

A: According to De Brogile wavelength formula, d = h/p Where d denotes wavelength, p is momentum and is…

Blackbody

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