To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy, ?kEk , must the electrons have in order to resolve a protein molecule that is 3.70 nm3.70 nm in diameter? Take the mass of an electron to be 9.11×10−31 kg9.11×10−31 kg .

Q: Calculate the maximum wavelength, ?max, of electromagnetic radiation that could eject electrons from…

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Q: Draw a graph showing the variation of de Broglie wavelength of a particle of charge q and mass m…

A: de-Broglie law states that matter have properties of both particle as well as wave. The de-Broglie…

Q: The distance from Earth to the sun is 1.5 * 108 km. Find the number of crests in a light wave of…

A:

Q: Determine the wavelength in pm (10-12 m) of an object of 2.83 X 10-31 kg moving at a velocity of…

A: Wavelength = h÷mv

Q: Consider a photon with an energy of 7.51 x 10-19). Determine the wavelength of the photon (in units…

A: We have given that  Energy of photon = 7.51×10-19J To calculate the wavelength of photon we have to…

Q: According to the de Broglie equation, what is the wavelength (in nanometers) the of a proton moving…

A: Given: Mass of proton = 1.67262 X 10-27 Kg  And speed of proton = 1.46 X 102 m/s.

Q: Determine the energy of a photon with a 678.0 nm wavelength.  I asked this question before the…

A: The wavelength of the photon is = 687.0 nm The energy of the photon is =?

Q: wavelength of a light photon (in units of nanometers) and the associated frequency of that photon…

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Q: It takes 254 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength…

A: The relation between energy and wavelength is shown below: E = hcλ where; E = energy h = planck's…

Q: A laser emits 2.13 * 1016 photons per second, each of which has wavelength 625 nm. Find (a) the…

A: A. Wavelength of photon = λ= 625 nm Energy of single photon is calculated by using formula,   E=hcλ…

Q: what is the wavelength of an electron orbiting in a hydrogen if it has a mass of 9.11x10^-31kg and a…

A: De-Broglie wave equation is used to calculate the wavelength of matter wave. Write the De-Broglie…

Q: For a He*, calculate the wavelength of light (in m) that would be emitted for the orbital transition…

A: The expression of Rydberg's equation is shown below: 1λ =R1n12-1n22 where; R = Rydberg's constant λ…

Q: For an electron in a box of length 1 angstrom ( 1 angstrom = 10-10 m) , A) Calculate the separation…

A: Electron in a box in 1- Dimension Given Length of Box =l= 10-10 m the separation between the two…

Q: Light with a wavelength of 2.50 × 10-7 m falls on the surface of a piece of chromium in an evacuated…

A: a) The maximum kinetic energy of photoelectrons emitted by light of frequency v is given by,

Q: To resolve an object in an electron microscope, the wavelength of the electrons must be close to the…

A:

Q: Calculate the energy of photon corresponding to a wavelength of 425 nm. Also calculate the energy of…

A: Energy of 1 mole photons = NA.hcλ                                           =…

Q: The minimum energy needed to eject electrons from chromium metal via the photoelectric effect is 434…

A: The relation between the energy and wavelength of radiation is as follows, Given: The minimum…

Q: What is the wavelength of a 75g ball moving with a speed of 42m/s

A: Given, mass of ball = 75 g Speed of ball = 42 m/s

Q: A series of lines involving a common level in the spectrum of atomic hydrogen lies at 656.46 nm,…

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Q: The electron in a ground-state H atom absorbs a photon of wavelength 97.20 nm. To what energy level…

A: The wave no. which is the reciprocal of wavelength corresponding to any line in a H-series is given…

Q: what is the shortest wavelength in the Lyman series (nf=1). Remember the rydberg constant is…

A: Answer

Q: Determine the wavelength of a particle, in meters,  with a mass of 2.37x10-37 kg traveling through…

A: We know lmbda=h/mv Lmbda=6.62×10-34÷2.37x10-37×2.50x104 Solve this equation  Lmbda=0.112m

Q: What is the wavelength of a proton traveling at a speed of 5.47 km/s? The mass of proton is 1.67 ×…

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Q: Thermal neutrons are neutrons that move at speeds comparable to those of air molecules at room…

A: Wavelength can be calculated using the given equation:

Q: What is the wavelength of an electron moving at a velocity of 0.72*c where c is the speed of light?

A: Wavelength can be calculated using the given equation:

Q: Calculate the wavelength in m of an electron travelling at 160 km/hr.

A: The scientist de Broglie gave a quantitative meaning to his idea by proposing an equation which…

Q: Silver has a work function, Φ, of 4.64 eV. If a sample of silver is bombarded with 215 nm photons,…

A: The work function of silver is 4.64 eV. The wavelength of photon bombarded with silver is 215 nm.

Q: Use the following figure to answer the following questions? Q1) Which letters represent the…

A: Given diagram is : (1). Which letters represent the wavelength = ? (2). Which letters represent the…

Q: For a He*, calculate the wavelength of light (in m) that would be emitted for the orbital transition…

A: Givem data is: Z = 2 (Atomic number of He) n1 = 1 n2= 6 For Helium wavelength can be calculated by…

Q: Compare the wavelengths of an electron (mass = 9.11 × 10-31 kg) and a proton (mass = 1.67 x 10-27…

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Q: please fill out the blank line. Question: A ground-state H atom absorbs a photon of wavelength 93.78…

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Q: Thomson also experimented with shining ultraviolet light at metal electrodes, such as zinc, to…

A: To calculate the maximum wavelength of light that can be used to eject an electron from zinc given…

Q: The work function of titanium metal is 6.93 × 10−19 J. Calculate the kinetic energy of the ejected…

A: Given: work function = 6.93 × 10−19 J frequency   = 5.278 ×1015 s−1 so first we have to calculate…

Q: An electron (mass= 9.11 x 10^-31)kg has a Di Brogile wavelength of 2.42 x 10^-10m. Calculate the…

A: Given An electron (mass= 9.11 x 10-31)kg has a Di Brogile wavelength of 2.42 x 10-10m. We have to…

Q: . The photoelectric effect consists of the emission of electrons from the surface of a metal when…

A: Solution: We know the energy of photon or tiny particle is given by formula, E = hv. We have another…

Q: -31 The mass of an electron is 9.11 × 10¬3ª kg. If the de Broglie wavelength for an electron in a…

A: Given : mass of electron = 9.11 X 10-31 Kg  and de Broglie wavelength of electron = 3.31 X 10-10 m

Q: Calculate the wavelength of an electron (m = 9.11 × 10-28 g) with a velocity of 8.38 × 106 m/s.

A: The wavelength of electron is given by λ=h/mev h=6.6×10−34Kgm2/s

Q: What is the mass of a ball bearing (in grams) with a wavelength of 7.071 x1029 m, and a velocity of…

A: Given  Wavelength (λ) = 7.071×10-29 m Velocity (v) = 0.100 m/s Mass (m)= ? From , λ= h/mv Here,  h =…

Q: Consider light at 375 nm.  What is the energy of one mole of photons of light with a wavelength of…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only.

Q: Calculate the wavelength A muon (subatomic particle with a mass of 1.884 x10^-25 g) traveling at…

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Q: The distance from Earth to the sun is 1.5x10^8 km. Find the number of crests in a light wave of…

A: The given data contains, distance = 1.5×108 km Frequency =1×1014s-1

Q: The threshold frequency of a metal can be determined from measurements of the speed of the ejected…

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Q: Silver has a work function, Φ, of 4.64 eV. If a sample of silver is bombarded with 213 nm photons,…

A: The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light,…

Q: Assuming that the smallest measurable wavelength in an experiment is 0.630 fm, what is the maximum…

A: The de Broglie hypothesis: De Broglie proposed that just as light has both wave-like and…

Q: Electron microscopes operate on the fact that electrons act as waves. A typical electron kinetic…

A: Given: The mass of electron m =9.11 x 10-31 kg The charge on the electron, e =1.602 × 10−19 C plank…

Q: Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n= 7…

A: Given :  h = 6.626 x 10-34 J-s  c = 3 x 108 m/s  Wavelength = 397 nm = 397 x 10-9 m

Q: When light with a wavelength of 300 nm is directed at a metal surface, we observe emitted electrons…

A: Kinetic energy of ejected electron is the difference between the energy of photon and the binding…

Q: 2. Given that the speed of light is 3.0 x 108 m s1,, show that the frequency of blue light having a…

A: Given speed of light = 3.0 ×1088m/sec Wavelength  = 480nm 1nm = 10-9 m Formula  used  Wave number  =…

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.