Prokofiev V.L - solution to the entire option 07 in physics KP4

Task 4.7

It is necessary to calculate the de Broglie wavelength of an electron that has passed through an accelerating potential difference of 511 kV.

Task 4.17

It is required to determine the minimum uncertainty of the photon coordinate corresponding to visible radiation with a wavelength of 0.55 μm.

Task 4.27

There is a particle located in an infinitely deep one-dimensional potential well of width l in the first excited state. It is necessary to find the points of the well at which the probability density of detecting a particle is maximum and at which it is minimum.

Problem 4.37

It is required to calculate the longest and shortest K-series wavelengths of characteristic X-ray radiation from a platinum anticathode.

Problem 4.47

It is necessary to determine the decay time of 87.5% of the atoms of 4520 Ca.

Problem 4.57

It is required to calculate the energy of the nuclear reaction n+105 B->73Li + 42He.

Problem 4.67

It is necessary to determine the maximum phonon energy in a crystal whose Debye temperature is 200 K. It is also necessary to calculate the number of phonons with maximum energy excited on average at a temperature of 300 K.

Problem 4.77

It is required to determine the impurity electrical conductivity of diamond containing boron with a concentration of 2 • 1021 m-3 and arsenic with a concentration of 1 • 1021 m-3, with the mobility of electrons and holes respectively equal to 0.18 and 0.12 m2/(V • s).

Prokofiev V.L - solution to the entire option 07 in physics KP4

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Prokofiev V.L - the solution to the entire option 07 in physics KR4 is a digital product containing solutions to all problems included in option 07 in physics KR4. In this product you will find ready-made and detailed solutions to problems 4.7, 4.17, 4.27, 4.37, 4.47, 4.57, 4.67 and 4.77. The product can be used to prepare for exams, tests or homework. Solutions to problems are presented in a convenient and understandable HTML format, which allows you to quickly and easily find the information you need. By purchasing this digital product, you get access to a useful and high-quality product that will help you improve your knowledge and skills in physics.

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Prokofiev V.L - solution to the entire option 07 in physics KR4 - this is a collection of solutions to problems in physics, including solutions to all problems of option 07 of Test work No. 4. The collection includes problems on various topics in physics, for example: the de Broglie wavelength of the electron, the uncertainty of the photon coordinate, the probability density of particle detection, the K-series wavelengths of characteristic X-ray radiation, the decay of atoms, the energy of nuclear reaction, the maximum phonon energy in a crystal and the impurity electrical conductivity of diamond with different concentrations of impurities. Solutions to problems contain step-by-step descriptions of the formulas, methods and reasoning used, which will help students better understand the material and prepare to successfully pass the physics exam.

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