An electron microscope uses electron. accelerated by a voltage of 30 KV: Determine the De-Broglie wavelength of electron. Mass of electron ='9.1 x10 31 kg.
Q: De Broglie Wavelengths Example 1: What is the wavelength of an electron moving at 5.31 x 10 m/ sec?…
A: Given : Velocity of an electron (v) = 5.31 x 106 m/sec Mass of an electron (m) = 9.11 x 10-31 kg…
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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
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A: Given: The DE Broglie wavelength (λ) = 1.0×10-10 m.
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A: Given data, Kinetic Energy KE=5.27 eV Wavelength λ=4.38×10-12 m
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A: The uncertainity in position and momentum of the particles are related as ∆x.∆P≥h4πWhere ∆x…
Q: A particle of matter is moving with a kinetic energy of 9.56 eV. Its de Broglie wavelength is 9.80 x…
A: Given value--- kinetic energy = 9.56 eV. debroglie wavelength = 9.80 × 10-12 m. We have to find---…
Q: The mass of an electron is about 9.11x10^-31 kg. What is the de Broglie wavlength of an electron…
A: Given data: The mass of an electron (m) = 9.11×10-31 kg Speed (v) = 0.01 m/s Required: The de…
Q: 3. A molecule in its first excited state will spontaneously decay to the ground state by emitting a…
A: From uncertainty condition, the relation between uncertainty in energy and time is ∆E∆t≥h where ∆E…
Q: What would be the velocity in m/s of a horse if it weighs 4.704e+8 g and its de Broglie wavelength…
A: Given data Mass, m=4.7×108 g=4.7×105 kg Wavelength,λ=1.062×10-40 m
Q: A 20.0-kg particle has a deBroglie wavelength of 10.0 cm. How fast is the particle moving? A. 1.30 x…
A: Given Mass of the particle (m) = 20 kg Wavelength = 10.0 cm
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A: To solve the given question we need to use de Broglie wavelength formula: λ=hmv Where 'h' is the…
Q: 4. An electron has a momentum py = 1.30 × 10-25 kg.m/s. What is the minimum uncertainty in its…
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Q: -12 An electron microscope operates with electrons of wavelength 2.74 pm (2.74 x 10¯ m). Find the…
A: GivenWavelength of electron, λ=2.74pm=2.74×10-12mMass of electron, m=9.1×10-31kg
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Q: a) The de Broglie wavelength of an electron is 2.33 nm. Use the Bohr model of the hydrogen atom to…
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Q: 2. a) Davisson and Germer, and G.P. Thomson demonstrated the wave nature of electrons in 1927 by…
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Q: At what velocity will an electron have a wavelength of 1.00 m?
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Q: In an electron microscope, an electron displays wave like properties. To decrease the de Broglie…
A: De-Broglie wavelength is given by:- λ=hmv where, m=mass of electron h=Planck's constant v=velocity…
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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- 3. When a metal is illuminated with light of wavelength 420 nm, the stopping potential is 0.65 V; when the wavelength of incident light is changed to 310 nm, the stopping potential is 1.69 V. Use these given data to find the work function of this metal in eV and a value of Planck's constant h (speed of light = 3 × 10® m/s, electronic charge = -1.6 x 10-19 C).1. Louis de Broglie postulated all matter has both a particle and wave nature. The wavelength of any matter wave is given by λ = h/p, where p is the linear momentum p = mv and both p and v are vectors. a) World class marathon runners can run at an average pace of about 3.00 min/km. What is the wavelength, momentum and kinetic energy of a 55 kg runner racing at this average speed? b) What is the uncertainty in the runner's velocity if the position is to be determined within one wavelength?3:42 .ull 5G Done 2 of 2 John Isner holds the ATP's (Association of Tennis Professionals) official record for the fastest serve at 253 km/h. Calculate the de Broglie wavelength of a tennis ball with the standard weight of 54.6 grams. Give your answer in 1034 m (for example, if your answer is 5.6x1034 m, then enter 5.6). This should give you a good idea of why one cannot expect to observe interference affects using tennis balls rather then, for example, electrons. +)
- 2. A particle of matter is moving with a kinetic energy of 6.55 eV. Its de Broglie wavelength is 1.34 x 10^-12 m. What is the mass of the particle? 4.68E-26 kg 1.40E-25 kg 1.99E-25 kg 1.17E-25 kg8. An electron is trapped within a sphere whose diameter is 5.20 x 10-15 m (about the size of the nucleus of a medium sized atom). What is the minimum uncertainty in the electron's momentum? kg.m/sCalculate the de Broglie wavelength (in fm) of a 5.8 MeV a particle emitted from an atomic nucleus whose diameter is approximately 1.6 × 10¯14, fm Calculate its minimum kinetic energy (in keV) according to the uncertainty principle. keV Could this particle exist inside the nucleus? Yes No Explain. m.
- 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?..5. An electron ( me = 9.11 × 10−31 kg ) and a bullet ( m = 0.02 kg) each have a velocity of magnitude 500 m/s, with a precision within 0.01%. In what limits is it possible to determine the position of objects along the velocity direction?What can you conclude from comparing your results for the electron and for thebullet?Which 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