A laser produces light of wavelength 625 nm in an ultrashort pulse. What is the minimum duration of the pulse if the minimum uncertainty in the energy of the photons is 1.0%?

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Q: An electron moves in the x c 3.6 x 10 m/s. We can measure 1%. With what precision can w its x…

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Q: What is the wavelength (in nm) of a photon with momentum 1.93 x 1027 kg m/ s?

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Q: A nucleus emits a gamma ray of energy 1.2 MeV from a state that has a lifetime of 2.1 ns. What is…

A: In quantum mechanics, there are pairs of variables that are complementary or canonically conjugate.…

Q: An atom in an excited state of 4.7 eV emits a photon and ends up in the ground state. The lifetime…

A: Given Excited state Photon E= 4.7 eVExcited state life time   =1.0×10-13 s.

Q: An ultrashort pulse has a duration of 9.00 fs and produces light at a wavelength of 556 nm. What are…

A: Given:-             According to the De broglie wavelength with the matter wane is given by:…

Q: A 64.6 g ball moves at 38 m/s. If its speed is measured to an accuracy of 0.07%, what is the minimum…

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Q: A spherical virus has a diameter of 50 nm. It is contained inside a long, narrow cell of length 1 x…

A: Given: The diameter of the spherical virus 50 nm. The length of the call is 1×10-4 m.

Q: Consider a photon with wavelength 0.011 nm. l = 0.011 nm What is the momentum of the photon in…

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Q: What is the wavelength in nm of a photon that has a momentum of 4.5*10^-27 kg.m/s

A: Momentum of the photon,  Planck's constant,    The momentum of the photon is given by the expression…

Q: An electron is located on a pinpoint having a diameter of 6.11 µm. What is the minimum uncertainty…

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Q: A circuit employs a silicon solar cell to detect flashes of light lasting 0.25 s. The smallest…

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Q: The average energy of a photon in a pulsed laser beam is2.39 eV, with a minimum uncertainty of…

A: Given that a pulsed laser beam  with each photon having energy 2.39 eV, with minimum uncertainty of…

Q: An electron is located on a pinpoint having a diameter of 2.5 µm. What is the minimum uncertainty in…

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Q: A horizontal beam of laser light of wavelength is 585 nm passes through a narrow slit that has width…

A: a) the Heisenberg  uncertainty principle is, ∆y∆py ≥h4π  where  ∆y = width of the slit∆py = momentum…

Q: An electron is located on a pinpoint having a diameter of 2.5 um. What is the minimum uncertainty in…

A: From uncertainty principle, the minimum uncertainty in the speed of the electron is given by

Q: The average energy of a photon in a pulsed laser beam is 2.39 eV, with a minimum uncertainty of…

A: Given : Average energy of a photon is 2.39 eV.             Minimum uncertainty energy is 0.0155 eV.…

Q: The interatomic spacing in a crystal of table salt is 0.282 nm. This crystal is being studied in a…

A: Solution:-Given thatInteratomic spacing=0.282 nm=0.282×10-9 mmass of neutron (m)=1.67×10-27 kgDe…

Q: A certain atom has an energy level 3.60 eV above the ground state. When excited to this state, atom…

A: Using Heisenberg's uncertainty relation, ∆E∆t≥ℏ

Q: A certain atom remains in an excited state for about 51.7 ns before emitting a 2.15-eV photon and…

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Q: What is the kinetic energy of each electron in a beam of electrons if the beam produces a…

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Q: Electrons with an energy of 0.842 eV are incident on a double slit in which the two slits are…

A: As per the De-Broglie hypothesis, matter can have both wave and particle nature. He formed matter…

Q: A photon passes through a horizontal slit of width 5 × 10-6 m. What uncertainty in the vertical…

A: Given: The width of the slit is ∆r=5×10-6 m.   The expression to calculate the minimum uncertainty…