Find the longest-wavelength photon that can eject an electron from potassium, given that the binding energy is 2.24 eV. Is this visible EM radiation?

Q: Calculate the energy of a photon (in J) with a frequency of 2.00e+16 Hz?

A: The formula for the energy of a photon is:

Q: What is the energy (in eV) of a photon emitted from a hydrogen atom when it transitions from an…

A:

Q: When radiation of frequency 8 x 10^14 Hz is incident to Calcium which has 4.3x10^-19 J work…

A: Given that Incidence frequency f = 8 X 1014 Hz Work function w = 4.3 X 10-19 J

Q: What is the longest-wavelength EM radiation that can eject a photoelectron from silver, given that…

A: The binding energy,

Q: If a photon has an associated wavelength of 636 nm, what is its photon energy in electron Volts?

A: Given data:  Wavelength of the photon (λ) = 636 nm Required: The energy of photon in eV

Q: what is the maximum frequency, in hertz, of these photons?

A: Since maximum energy , Emax = 22000 eV  Emax = 22000×1.6×10-19 J  Emax = 35200×10-19 J = 3.5×10-15 J…

Q: What is the energy of a neutron having wavelength 1000 nm ?

A:

Q: Find the wave number of photon having an energy 2.09 eV.

A:

Q: A certain shade of blue has a frequency of 7.31 x 1014 Hz. What is the energy E of exactly one…

A: Since you have asked multiple question ,we will solve first question for you. if you want any…

Q: The energy (in electron-volts) for a photon with a wavelength 439.8 nm is:

A:

Q: When an electron is accelerated through a potential difference Δφ it acquires a kinetic energy e Δφ.…

A: kinetic energy of an electron, KE = e∆φ where, ∆φ is the potential difference

Q: Find the power being emitted by the monochromatic light source, if it emits {N]x1019 photons with…

A:

Q: Using conservation principles, prove that a photon cannot transfer all its energy to a free…

A: To solve this case, conservation of energy and momentum is to be examined. Let , 'lambda' be the…

Q: A pulsed ruby laser emits light at 694.3 nm. For a 14.0-ps pulse containing 3.00 J of energy, find…

A: Let λ be the wavelength of the light emitted by the laser, Δt be the time interval, E is the energy…

Q: What is the maximum kinetic energy of a photoelectric from a material whose work function is 2.37eV…

A:

Q: Find the kinetic energy of an electron whose de Broglie wavelength is 2.9 Å.

A:

Q: Prove that the energy of a trapped particle is quantized. Find the possible relations.

A: The particle in the box model system is the simplest non-trivial application of the Schrödinger…

Q: Find the de Broglie wavelength of a proton with a kinetic energy of 15 eV.

A: Kinetic energy of proton is given and we are required to find its de Broglie wavelength.

Q: Find energy of photon of wavelength 4000 Å

A: Given: The wavelength of a photon, λ=4000 Å. The energy of a photon is inversely proportional to…

Q: Potassium is 2 eV. If the surface of the metal is illuminated by a radiation of 360 nm, The energy…

A:

Q: A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. What series of…

A: Given: The energy of electron beam (E) = 12.5 eVEnergy of gaseous hydrogen at ground state = -13.6…

Q: Find the minimum frequency a photon must have if it is to ionize the ground state of the hydrogen…

A:

Q: Find the energy (in ev) of a photon with a frequency of 8.3 × 1016 Hz. ev

A:

Q: Find the wavelength of photons that eject 0.100-eV electrons from potassium, given that the binding…

A: Given: Energy of ejected photon ( Kinetic Energy, KE ) = 0.100 eV = 1.60218 x 10-20 J Binding…

Q: What is the frequency in Hz of radiation required to supply a total energy of 1.12 x 102 J from 8.51…

A: Etotal=nhf       f=Etotalnh

Q: Why does the energy of characteristic x rays become increasingly greater for heavier atoms?

A: The energy characteristics of x ray can be expressed as

Q: what is the DeBroglie wavelength of a baseball traveling at a speed of 150 km/hr?

A: Given: Speed of baseball (v) = 150 km/hr = 41.667 m/s. Mass of baseball (m) = 145 gm. (from…

Q: A pulsed ruby laser emits light at 694.3 nm. For a 14.0-ps pulse containing 3.00 J of energy, find…

A:

Q: An electron in a piece of aluminum requires at least 6.73e-19 J of energy to be ejected from the…

A: "Since all questions are different, as per guidelines we can author only 1st one. Please repost…

Q: Find the de-broglie wavelength of a 1.00 MeV proton. Is a relativistic calculation needed?

A: We have to find the de-Broglie wavelength of a 1.00 MeV proton. We have to mention, whether a…

Q: Characteristic x‐rays emitted by molybdenum have a wavelength of 0.072 nm. What is the energy of one…

A: Wavelength , λ = 0.072 x 10-9 m To find = Energy

Q: Show that at long wavelengths, Planck’s radiation law reduces to the Rayleigh–Jeans law.

A:

Q: A metal surface is illuminated by light with a wavelength of 2,8. 107 m. If the stopping potential…

A: Wavelength of light  λ = 2.8×10-7 m Stopping potential Vo = 0.7 V Detachment energy W = ?

Q: Find the maximum possible number of photons emitted by a hydrogen electron located at the energy…

A: Given: n = 5Find: The maximum number of photons.

Q: A helium–neon laser emits laser light at a wavelength of 632.8 nm and a power of 2.3 mW. At what…

A:

Q: of

A: Given: Frequency = 1.5 x 106 Hz The energy of photon =?

Q: Characteristic x-rays emitted by manganese have a wavelength of 0.210 nm. What is the energy of one…

A:

Q: The peak intensity of the CMBR occurs at a wavelength of 1.1 mm. What is the energy in eV of a…

A:

Q: When radiation of frequency 8 x 10^14 Hz is incident to Calcium which has 4.3x10^-19 J work…

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

Q: What is the wavelength of EM radiation that ejects 2.00-eV electrons from calcium metal, given that…

A:

Q: Is it possible to calculate the Rydberg constant at X-ray wavelengths? Explain why?

A: Yes. The absorption of x-ray quanta during the passage of x-rays through matter is essentially due…

Q: What is the velocity, in meters per second, of a beam of electrons if they are to display a "de…

A: The wavelength,

de Broglie Equation

The sketch of matter waves is drawn below: