Solved Examples 1. Calculate the Wavelength of the Electron that is Moving at the Speed of Light.
Q: Suppose a photon has a momentum of 5.4 × 10-29 kg⋅m/s. A. What is the wavelength of such a photon…
A: Given data: The photon, P=5.4×10-29 kg.m/s
Q: Electrons striking the back of a conventional TV screen travel at a speed of about 1.3 x 107 m/s.…
A:
Q: 20. A beam of electrons with speed v = 2.08 x 106 m/s is directed at a gas of hydrogen atoms that…
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Q: An electron orbiting a hydrogen atom transitions from n=6 to n=2. What is the wavelength of the…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: A bullet from a .357 Magnum has a mass of 11.66 gms and a muzzle velocity of 387 m/s. What is the…
A: SOlution: Given that m = 11.66 gms v =387 m/s
Q: 7) Calculate translational kinetic energy of a non-relativistic electron as a function of the…
A: We know the de Broglie wavelength is given as:λ=ph=mvhorv=mλhorv2=m2λ2h2or K.E.=21mv2=2mλ2h2
Q: Why can’t we use photons to “see” the position of electrons in an atom?
A: Simultaneous determination of exact position and momentum of an electron is not possible. This is…
Q: Jump to 1 2 3 4 5 6 7 8 9 10 multiple choice question If a red light matches the cut-off frequency…
A: It is given that the cut of frequency matches the frequency of red light.
Q: (The Photoelectric Effect) A 75-W light source consumes 75 W of electrical power. Assume all this…
A: The wavelength =600nm To find the frequency of the emitted light and The photons per second does…
Q: What is the wavelength (in nm) of an electron moving at 3.09% of the speed of light? nm
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Q: 4. An electron is accelerated into a cathode plate with a potential difference of 100,000 V. a) What…
A: NOTE- As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly…
Q: Electrons striking the back of a conventional TV screen travel at a speed of about 1.8 ✕ 10^7 m/s.…
A: Given : v = 1.8 × 107 m/s
Q: An electron (m=511 keV/c2 is moving at 0.020c when it collides with a metal target. The electron…
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Q: a. An electron is found to a wavelength of A = 0.65 nm. What is the velocity of the electron? m/s b.…
A: (a) Using de-Broglie wavelength equation: λ=hmvv=hmλ where,…
Q: Why does light of a certain frequency need to be used to produce a current in the photoelectric…
A: When ultraviolet light or X-rays are made to fall on any metal surface (such as zinc plate), free…
Q: What is the momentum of photons with the following wavelengths?
A: Apply formula for photon momentum
Q: oton in vacuum is larger than the speed of light in orb a photon, but it cannot emit a photon. oton…
A: A photon is a quantum of Electromagnetic radiation. Its energy is given by…
Q: 4. The thermal radiation from the earth's surface peaks at a wavelength of approximately 10 um. What…
A: From Given wavelength of photon we can get the frequency of photon. Energy = Planck's constant (h) ×…
Q: The wavelength of an electron moving at 2.2 m/s is how much longer than the wavelength of an…
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Q: In an electron microscope we wish to study particle of diameter about 0.10 um. a) What should be the…
A: Given: Diameter of particle =0.10μm=0.10×10-6 m a) In order to observe any object under electron…
Q: In a Compton efect experiment, a photon scattered from an electron at rest increases its wavelength.…
A: Let the wavelength of incident photon = λLet the wavelength of the scattered photn = λ'Let the…
Q: a.) In what part of the EM spectrum would a photon of energy 7.7 ✕ 10−23 J be found? b.) What is…
A: According to Planck-Einstein relation the energy of a photon is calculated by using the formula E=hν…
Q: An electron and a proton have the same kinetic energy and are moving at speeds much less than the…
A: Given: Kinetic energy of electron is equal to the kinetic energy of proton, Ke=Kp. Mass of electron…
Q: The following graphical data was obtained for the wavefunction of a photon. The wavefunction is of…
A: a. To determine A, find the maximum amplitude of the wave from the graph.b. To determine B, find the…
Q: A bullet from a .357 Magnum has a mass of 11.66 gms and a muzzle velocity of 387 m/s. What is the…
A: Given : Mass of bullet, m = 11.66 gms = 11.66*10-3 kg Muzzle velocity, v = 387 m/s
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- 1. A particle loses 7.20 × 10-¹⁹ J of energy while emitting light. (a) What is the wavelength of the light that is emitted in nm? What portion of the electromagnetic spectrum does this light represent? (b) What is the frequency of the light emitted in sec¯¹? (c) If the wave function for an electron has a wavelength of λ = 500 nm, which would be equivalent to a visible photon if the electron were light instead of a particle, how fast is the electron moving, in m/sec, according to deBroglie's formula?help pleaseIn a photoelectric effect experiment, light was shone on a metal surface and the data below were recorded. 13. Maximum kinetic Frequency of incident light (×10“ Hz) energy of ejected electrons (×10 " J) 6 1 7 1.6 8. 2.3 2.9 i) Graph these results, including the line of best fit. frequency (x10“ Hz) ii)Use the graph to determine the work function for this metal surface. Exmax (× 10-19 J)
- A photoelectric effect is observed in a particular metal when a maximum wavelength of 700 nm is used. a.Determine the work function. b.What is the stopping potential of the electrons if a wavelength of 500 nm is used instead? c.Graph the maximum kinetic energy of the photoelectrons as a function of the light illuminated over this metal.In an old-fashioned television set, electrons are accelerated through a potential difference of 24.9 kV. What is the de Broglie wavelength of such electrons? (Relativity is not needed.) Number UnitsA) Find the wavelength of a photon that has energy of 27 eVeV. Express your answer with the appropriate units. B) Find the wavelength of an electron that has energy of 27 eVeV. (The energy of the electron is its kinetic energy.) Express your answer with the appropriate units.
- 4. In an electron microscope electrons are accelerated by a 1500-V potential drop to a velocity of approximately 1x108 m/s. a) Calculate the de Broglie wavelength of these electrons. b) What size objects should such a microscope be able to visualize? Explain your answer. c) If you desire a minimum uncertainty in the position of the electrons in your microscope of 1 Å, what is the maximum uncertainty that is acceptable in the momentum and velocity of the electrons?..Calculate the wavelength of an electron (mass= 9.109 x10-28 g) that is traveling 6.50 × 10³ m/s. i EWhich has the larger de Broglie wavelength, a 0.50 kg ball moving with a speed of 25 m/s or an electron traveling at 2/3 the speed of light? The mass of an electron is 9.11 x 10-31 kg and the speed of light is 3 x 108 m/s. Select one: a. It could be either, depending on the circumstances. b. The ball c. The electron