Use the de Broglie relationship to determine the wavelengthsof the following objects: (a) an 85-kg person skiing at50 km>hr, (b) a 10.0-g bullet fired at 250 m>s, (c) a lithiumatom moving at 2.5 * 105 m>s, (d) an ozone 1O32 moleculein the upper atmosphere moving at 550 m>s.

Q: 2.8 According to classical physics, the average energy of an electron in an electron gas at thermal…

A: Write the expression of average electron energy in eV. E=32kT

Q: In a photoelectric experiment using a sodium surface, youfind a stopping potential of 1.85 V for a…

A: Given:- stopping potential =1.85 V wavelength =300 nm stopping potential = 0.820 V wavelength = 400…

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Q: If light of wavelength, 2 = 4000 A and intensity 100 W/m² incident on a metal plate of threshold…

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Q: If a photoemissive surface has a threshold frequency of 4.6 x 104 Hz, calculate the energy of the…

A: Given: The threshold frequency of the photon is 4.6x1014 Hz. The Plank's constant is 6.6x10-34 J.s.

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

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Q: Their de Broglie wavelength is λ. The accelerating potential differenc increased to 4 AV. The…

A: GivenProton is accelerated from rest through potential difference ∆VDe Broglie wavelength…

Q: A paramecium is covered with motile hairs called cilia that propel it at a speed of 1 mm/s. If the…

A: ρ=Density of water=Density of paramecium=1000 kg/m3V=Volume=2×10−13 m3v=Velocity=1 mm/sL=Length of…

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: 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: When you cool a gas, how does this affect the de Broglie wavelength of the gas atoms?

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Q: Cut-off frequency for the photoelectric effect in some materials is 8.0×10^13 Hz. When the incident…

A: K.E.max=hν-νowhere, h = planck's constantνo = cut off frequencyν = incident frequencystopping…

Q: If the wavelength of a photon increases by 50% on being reflected by an electron, how much will it…

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Q: A proton with total energy 5.52 keV, and initial de Broglie wavelength λi travels from a region with…

A: Energy (E)=hc/lamda Lamda=h/√2mev

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: What is the deBroglie wavelength of a 1500 kg car traveling at 100km/hr(27.8 m/s)?

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

Q: A neutron is shot straight up with an initial speed of 100 m/s. As it rises, does its de Broglie…

A: Given: The initial speed of Neutron is 100 m/s Need to find that the de Broglie wavelength increase,…

Q: If a photoemissive surface has a threshold frequency of 4.6 x 104 Hz, calculate the in eV. Givenh =…

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Q: Calculate the de Broglie wavelength of (a) a 56.0 kg woman jogging leisurely at 2.0 m/s, (b) a free…

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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: What is the kinetic energy and the speed of an ele ejected from a sodium surface whose work functic…

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Q: Assume hydrogen atoms in a gas are initially in theirground state. If free electrons with kinetic…

A: Given, Kinetic energy, E=12.75 eV.

Q: A sprinter wins a 100-m dash in 9.30 s. What is his de Broglie wavelength at this speed if his mass…

A: The given data are: d=100 mt=9.3 sm=85.4 kg Here, d is the distance, t is the time, and m is the…

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…

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Q: Determine the de Broglie wavelength for i. an electron (mass = 9.1 x 10-31 kg) moving at a speed of…

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Q: An electron of mass m and charge e, initially at rest, gets accelerated by a constant electric field…

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Q: Aljaniis trying to experimentally measure Planek's constant h. He does this by shining different…

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

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Q: Calculate the ratio of the kinetic energy of an electronto that of a proton if their wavelengths are…

A: In the non-relativistic limit: Speed of electron/proton v is such that, v<<c Where, c=Speed of…

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: In a particular photoelectric experiment, a stoppingpotential of 2.10 V is measured when ultraviolet…

A: The expression for energy of a photon in terms of its wavelength is, E=hcλ Here, h is Planck’s…

Q: t what velocity will an electron have a wavelength of 2.8 m?

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Q: i) Find the de Broglie wavelengths of a) an electron (m, = 9.1 x 10-31 kg) accelerated through a…

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Q: Light with a wavelength of 400 nm strikes the surface of cesium in aphotocell, andthe maximum…

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Q: According to the simple de Broglie model, how many wavelengths are there in an electron wave in the…

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Q: Light of wavelength 277 nm is incident on an uncharged metal sphere of diameter 16.2 cm. If the work…

A: The charge induced on the sphere due to photoelectric effect is 7.2×10-12C.

Q: A special kind of lightbulb emits monochromatic light of wavelength 630 nm. Electrical energy is…

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Blackbody

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