• 2022-05-31 问题

    There are three types of scattering, including ( ) . A: Nonselective scattering B: Mie scattering C: Rayleigh Scattering D: Forward-scattering

    There are three types of scattering, including ( ) . A: Nonselective scattering B: Mie scattering C: Rayleigh Scattering D: Forward-scattering

  • 2022-05-31 问题

    Spontaneous Brillouin<br/>scattering is generated through the interaction between the input<br/>light field and the thermally<br/>fluctuating acoustical fields______ .The feature of this effect is that the frequency shift of the<br/>scattering light is dependent on the scattering angle and theacoustic<br/>velocity<br/>______ in<br/>the medium.

    Spontaneous Brillouin<br/>scattering is generated through the interaction between the input<br/>light field and the thermally<br/>fluctuating acoustical fields______ .The feature of this effect is that the frequency shift of the<br/>scattering light is dependent on the scattering angle and theacoustic<br/>velocity<br/>______ in<br/>the medium.

  • 2021-04-14 问题

    For aluminum ( Z2 = 13) and gold ( Z2 = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? (     )

    For aluminum ( Z2 = 13) and gold ( Z2 = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? (     )

  • 2022-05-31 问题

    The Tyndall effect is the result of scattering of light by sol particles.

    The Tyndall effect is the result of scattering of light by sol particles.

  • 2022-05-31 问题

    Urban haze, the scattering or absorption of light, is caused by fine particles.

    Urban haze, the scattering or absorption of light, is caused by fine particles.

  • 2022-05-31 问题

    The atomic model of Thomson, is overturned Rutherford with the scattering experiment of a-particle.

    The atomic model of Thomson, is overturned Rutherford with the scattering experiment of a-particle.

  • 2022-05-31 问题

    For aluminum ( Z = 13) and gold ( Z = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? ( ) A: 36.93 B: 0.03 C: 134.5 D: 1.47

    For aluminum ( Z = 13) and gold ( Z = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? ( ) A: 36.93 B: 0.03 C: 134.5 D: 1.47

  • 2022-05-31 问题

    Nonselective scattering is caused by particles that are much larger than the wavelength of the scattered radiation. ( )

    Nonselective scattering is caused by particles that are much larger than the wavelength of the scattered radiation. ( )

  • 2022-05-31 问题

    Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? (    )

    Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? (    )

  • 2022-06-18 问题

    They've been _________toys everywhere. A: throwing B: putting C: dropping D: scattering

    They've been _________toys everywhere. A: throwing B: putting C: dropping D: scattering

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