第十二章 量子物理基础(Chapter xii quantum physical basis).doc

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1、第十二章 量子物理基础(Chapter xii quantum physical basis)Vegetarian food is not cloudy; The living alone is not cloudy; Silent meditation is not turbid; The mouth is not turbid. - zeng guofanClass _ school name _The quantum of the 12th - one light1. Which of the following objects is an absolute black body? (a

2、)A) the object that does not radiate any light(B) an object that does not reflect any light(C) objects that cannot reflect visible light(D) objects that do not radiate visible lightThe red limit of metal photoelectric effect depends on:(A) the frequency of incident light(B) intensity of incident lig

3、ht(C) the work of metal(D) the frequency of incident light and the escape of metal3. The photoelectric effect is described as follows:(1) the visible light of any wavelength can produce the photoelectric effect on any metal surface;(2) if the frequency of incident light is greater than that of a giv

4、en metal red limit, the maximum initial kinetic energy of the photoelectron is different when the metal is exposed to different frequencies and equal intensity.(3) if the frequency of incident light is greater than the red limit of a given metal, the number of photoelectrons released by the unit wil

5、l be equal when the light is exposed to different frequencies and equal intensity respectively.(4) if the frequency of incident light is greater than the red limit of a given metal, when the incident light frequency is constant and the intensity is doubled, the saturated optical current of the metal

6、 is also doubled.The correct one is: ()(A) (1), (2), (3)(B) (2), (3), (4)(C) (2), (3)(D) (2), (4)4. The energy of a photon is equal to the static energy of an electron, and the wavelength of the photon. = _, momentum p = _ hold, noted the quality m =.5. Known work function is 2.0 eV, if with a wavel

7、ength of 3.60 x 10-7 m of light on the potassium, the combat the absolute value of the voltage of the photoelectric effect Ua = _, emit electrons from potassium surface the maximum speed of vmax = _. (h = 6.63 x 10-34 Js, 1 eV = 1.6 x 10-19 j, me = 9.11 x 10-31 kg)6. A certain wavelength of the X-ra

8、y after material scattering, the scattered light contains wavelength _ and wavelength. two ingredients, including _ the scattering component called Compton scattering.7. In Compton scattering, the direction of the emitted photon and the incident photon is in the Angle of Angle. When = _, the frequen

9、cy of light decreases the most; When? The frequency of light remains constant while _.What is the content of the Planck quantum hypothesis?9. Removing an electron from aluminum requires the energy of 4.2 eV, which has a wavelength of 2000 light to be projected onto the aluminum surface.(1) what is t

10、he maximum kinetic energy of the photoelectron emitted from this?(2) how big is the stop voltage?(3) what is the cutoff wavelength of aluminum?10. With a wavelength of 3500 light metal surface, choose a certain of voltage can halt the photocurrent, when the wavelength of the light changes in 500, to

11、 make the photocurrent fully suspended, stopping voltage must be increased 0.59 V, if known h = 6.63 x 10-34 js, electronic energy e.Class _ school name _Quantum theory of atom 12-2 (1)It is known that the energy of hydrogen atoms from the ground state to a certain state requires energy of 10.19 eV,

12、 and the energy of the photon emitted when the hydrogen atom jumps from the state of energy to the state of the above state of the state of the state is ().(A) 2.56 eV (B) 3.41 eV (C) 4.25 eV (D) 9.95 eV2. In the gas discharge tube, the electron of 12.1 eV is used to blast the hydrogen atoms in the

13、ground state. The energy of the photon emitted by the hydrogen atom can only be: ().(A) 12.1 eV(B) 10.2 eV(C) 12.1 eV, 10.2 eV and 1.9 eV(D) 12.1 eV, 10.2 eV and 3.4 eV3. Known to the ground state of hydrogen atom electronic ionization by light, the longest wavelength of light is 913 ultraviolet lig

14、ht are available, and then the hydrogen atoms from the excited state transition to Lyman series spectrum of ground state of wavelength can be expressed as: ()(A)(B)(C)(D)4. There are several understandings of the relationship between uncertainty (uncertainty) :(1) the momentum of the particle cannot

15、 be determined(2) the coordinates of the particles cannot be determined(3) the momentum and coordinates of the particle cannot be determined at the same time(4) the uncertainty relationship applies not only to electrons and photons, but also to other particles.The correct one is: ()(A) (1), (2)(B) (

16、2), (4)(C) (3), (4)(D) (4), (1)5. If the wavelength of the photon is equal to the wavelength of the electron, they are:(A) both momentum and total energy are equal (B) both momentum and total energy are not equal(C) the momentum is equal, the total energy is not equal (D) the momentum is not equal,

17、the total energy is equal6. The large number of hydrogen atoms in the excited state of n = 5, when they transition to the lower energy state, can produce _ spectral lines, which can be observed to the maximum wavelength of the _ line, where the longest wavelength of the light wave is? Max = _, the s

18、hortest wavelength is? There are _ strips in these lines belonging to the balmer series.7. The electron in the hydrogen atom is in the orbit of n = 3, and the ionization energy is _eV. When it jumps from the excited state of n = 3 to the ground state, the wavelength of the emission spectrum is _; Th

19、e energy emitted per photon is _eV.8. According to Bohrs theory, the orbit of electron in hydrogen atom in the first and the third orbit when the ratio of moment of momentum L1: L3 = _, the ratio of the rate of v1, v2 = _.What are the basic assumptions of Bohr theory?Vegetarian food is not cloudy; T

20、he living alone is not cloudy; Silent meditation is not turbid; The mouth is not turbid. - zeng guofan10. The wavelength of the two spectral lines and the frequency of foreign light are observed in the balmer series after the hydrogen atoms in the ground state are excited by the foreign monochromati

21、c light.Class _ school name _Quantum theory of atom 12-3 (2)1. The square of the absolute value of the wave function? ? 2 physical meaning is _ _,The wave function of the standard conditions, namely itself must be _, _, _ function. meet _ is the normalized condition.2. According to the theory of qua

22、ntum mechanics, the state of the outer electron of the nucleus is determined by four quantum Numbers, and the names of these four quantum Numbers are respectively named, physical meanings and range of values:(1) _(2) _(3) _(4) _3. When the quantum number n = 3, the possible values of l and ml are:L

23、= _, ml = _L = _, ml = _L = _, ml = _Ms = _, corresponding to n = 3 has _ state.The fixed state schrodinger equation for one-dimensional particles is.5. Fully describe the motion state of microscopic particles: ()(A) schrodinger equation(B) uncertainty(C) the wave function(D) energy6. Fully describe

24、 the changing laws of the motion of microscopic particles: ()(A) the wave function(B) uncertainty(C) schrodinger equation(D) level.7. The known particles are moving in a one-dimensional rectangular infinite deep well, and its wave function is as follows: (x) = (1 /) cos PI 3 x/(2 a) (- a, x or less

25、a) or lessThe probability density of the particle at x = 5a / 6 is:(A) 1 / (2a) (B) 1 / A (C) 1 / A (D) 1 /8. Briefly describe Pauli exclusion principle and principle of minimum energy.9. When a beam of charged particles is accelerated by a 206-volt potential difference, the wavelength of its DE Bro

26、glie is measured at 0.02, and it is known that the charged particle has the same amount of electricity as the electron electricity, and the mass of the particle is obtained.10. The stationary wave function of the particle in the one-dimensional infinite deep potential well is? N (x) = / asin (n? X)/

27、a, try to find the probability that the particle is found between x = 0 and x = a / 3, when (1) the particle is in the ground state, (2) the particle is in the state of n = 2.123Vegetarian food is not cloudy; The living alone is not cloudy; Silent meditation is not turbid; The mouth is not turbid. - zeng guofan

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