An electron has a de Broglie wavelength of 2.80 * 10-10 m. Determine (a) the magnitude of its momentum and (b) its kinetic energy (in joules and in electron volts).

Q: Wavelength of light 650 nm is incident on a metallic surface. If the stopping potential for the…

A: Given : Wavelength of light = 650 nm = 650 *10-9 m Stopping Potential = 0.45 V Known : Speed of…

Q: Calculate the kinetic energy of an electron having de Broglie wavelength of 1Å.

A: De-Broglie wavelength is given by:  λ=hmv Squaring both sides we get,…

Q: When light of wavelength 250nm is incident on a metal surface, the maximum speed of the…

A: Given:  incident wavelength = 250 nm = 250 x 10-9 m  maximum speed, v = 4 x 105 m/s

Q: Find the momentum of the electron having de Broglie wavelength 0.6 A

A:

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 de Broglie wavelength associated with (a) an electron moving with a speed of 5.4×106…

A: The de Broglie wavelength be defined as,

Q: A photon has a wavelength of 50 nm. What is the de Broglie wavelength of an electron that has the…

A: Given wavelength=50 nm

Q: Calculate the de Broglie wavelength of a He atom at 27 degrees Celsius and v = 2.4 × 1000.

A: It is given that,

Q: What is the maximum speed of emitted photoelectrons if a beam of light of wavelength 200 nm is shone…

A:

Q: Calculate the de Broglie wavelength of the following items. тe-- 9.11 х 1о 31 kg mp4 = 1.67 x 10-27…

A:

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

A:

Q: What is the kinetic energy of a proton whose de Broglie wavelength is 15.4 fm?

A: p=hλ=6.63×10-34 J·s15.4 fm10-15 m1 fm=0.431×10-19 m

Q: If the de Broglie wavelength of an electron is equal to 5.0 e -7-m, how fast is the electron moving?…

A:

Q: The work function of a surface is 5.0×10^−19 J. If light of wavelength of 300 nm is incident on the…

A: Given: The work function of the metal is 5x10-19 J. The wavelength of the light is 300 nm.

Q: What is the de Broglie wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?

A: Kinetic energy of proton1: KE1 = 2.0MeV = 2.0 x 1.6 x 10-13 V = 3.2 x 10-13 V Kinetic energy of…

Q: Calculate the de Broglie wavelength of a proton moving at (a) 2.00 × 104 m/s and (b) 2.00 × 107 m/s

A: (a)   Calculate the de Broglie wavelength of a proton at 2.00×104 m/s as below.

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: What are (a) the energy of a photon corresponding to wavelength 1.00 nm, (b) the kinetic energy of…

A: a) The expression for the energy of photon is,

Q: What speed would an electron need in order to match the de Broglie wavelength of a proton whose…

A: The wavelength is inversely proportional to mass and speed. The unit of wavelength is meter(m).…

Q: When radiation of frequency 8 x 10^14 Hz is incident to Calcium with 4.3 x 10^-19 J work function,…

A: Given data: Frequency of radiation, ν=8×1014Hz Work function, ϕ0=4.3×10-19J

Q: If the kinetic energy of the particle is increased to 16 times its previous value, the percentage…

A:

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: When light of wavelength 250 nm is incident on a metal surface, the maximum speed of the…

A: Basic Details The work function is equal to the difference of the energy of photon to the maximum…

Q: What is the wavelength of an electron of energy(a) 10 eV, (b) 100 eV, (c) 1.0 keV?

A: (a) The energy of the electron is 10 eV. Calculation: Write the expression for the wavelength of the…

Q: Using the Broglie"s relationship, the velocity of an electron with a (mass e = 9.11×10-31 kg) having…

A:

Q: The surface of a metal is illuminated alternately with photons of energies E1 = 4 eV and E2 = 2.5 eV…

A: Given Energy of photon (E1) = 4eV Energy of photon (E2) = 2.5eV

Q: When light of wavelength 3.50 x 102 nm falls on a potassium surface, electrons having a maximum…

A: From the photoelectric effect, the equation of work function is,

Q: What is the de Broglie wavelength associated with an electron, accelerated through a potential…

A: Given,

Q: Calculate the de Broglie wavelength for an electron travelling at 4.27x10^6 m/s

A: We known that, de Broglie wavelength is given by, λ = h/mv where, λ is the wavelength  h is Planck's…

Q: Calculate the velocities of electrons with de Broglie wavelengths of 1.7×103 nm and 5.0 nm,…

A:

Q: In a photoelectric-effect experiment, the intensity of the light is increased while the frequency,…

A: Intensity of light increases

Q: Find the de Broglie wavelength of a football of mass 0.4 kg traveling 23 m/s?

A: The equation for the de Broglie wavelength is given by,

Q: By what factor does the de Broglie wavelength of a particle change if (a) its momentum is doubled or…

A: Step1 - Here we will solve part(a) of the question.             (a). its momentum is doubled…

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: When light of wavelength 250nm is incident on a metal surface,the maximum speed of the…

A: Given:  incident wavelength = 250 nm = 250 x 10-9 m max speed, v = 4 x 105 m/s  mass of electron, m…

Q: White light consisting of wavelengths between 380 nm and 750 nm is incident on a lead surface. For…

A:

Q: Show graphically, the variation of the de- Broglie wavelength (λ) with the potential (V) through…

A: Given: De Broglie wavelength = λ Potential difference = V volts

Q: What is the de Broglie wavelength for an electron with speed (a) v = 0.480c and (b) v = 0.960c?

A: Given that: A) Speed of electron, v = 0.480 c B) When, Speed of electron, v = 0.480 c

Q: At what speed is a 66 kg person traveling if they have a de Broglie wavelength of 5 x 10-36 m 5 m/s…

A:

Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.