User:Marshallsumter/Radiation astronomy1/Mathematics/Quiz

Radiation mathematics is a lecture and an article about the mathematics of original research/radiation, including radiation as part of original research/radiation astronomy. It is part of the department of radiation astronomy course on the principles of radiation astronomy.

You are free to take this quiz based on radiation mathematics at any time.

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Quiz
{True or False, ε0 is the electric constant. + TRUE - FALSE
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{The equation for the ion current is likely to include which of the following? - the mass of the electron - the number of electrons - e to the grain capacitance factor + the dust grain radius - a 4πr factor
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{True or False, In the equation for the Larmor radius the charge of the particle is directly proportional to the magnetic field. - TRUE + FALSE
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{Over the last few years, the cold dark { matter (i) } cosmogony has become a { fiducial (i) } model for the formation of structure.
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{Mathematics phenomena associated with radiation astronomy are - orbital theory + flux of annihilation gamma rays + the Rydberg formula - pressure + the local Jeans length + Planck's equation
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{True or False, When solving an equation for a numerical value arrange the coefficients together, the exponentials together, and the dimensions together, to reduce each as needed. + TRUE - FALSE
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{Complete the text: By setting the first partial { derivative (i) } of Planck's equation in wavelength form equal to zero, iterative { calculations (i) } may be used to find pairs of (λ,T) that to some significant digits represent the peak { wavelength (i) } for a given temperature and vice versa.
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{Complete the text: Match up the type of mathematics with each of the possibilities below: numbers - A dimensional analysis - B arithmetic - C algebra - D exponentials - E probability - F x2 + y2 = z2 { D (i) }. PeV { B (i) }. $$\phi$$ α 1/σ { F (i) }. ex + ey { C (i) }. A(x) = A0 · e-bx { E (i) } 1015 { A (i) }.
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{True or False, log10(100000) = 6. - TRUE + FALSE
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{Complete the text: Match up the radiation mathematics symbol with the radiation phenomena: thermal neutron capture rate - A change in particle diameter - B power law - C Planck constant - D Boltzmann constant - E electrostatic force - F Jeans length - G $$h$$ { D (i) }. $$\lambda_J$$ { G (i) }. $$\varphi_n$$ { A (i) }. $$F_q$$ { F (i) }. $$ax^k$$ { C (i) }. $$k_B$$ { E (i) } $$C_D$$ { B (i) }.
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{True or False, dex(x) = ex. - TRUE + FALSE
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{Which of the following is radiation mathematics? - the planet Mercury + →  +  +  - the solar wind - Cepheus X-1 - nucleosynthesis near the surface of the Sun - lightning on Jupiter
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{True or False, Gamma radiation which exceeds the neutron binding energy of a nucleus can eject a neutron. + TRUE - FALSE
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{Complete the text: Match up a likely locational notation with each of the possibilities below: atomic number - A atomic weight - B average hat - C exponent - D index - E pre-coefficient - F operation - G range - H variable - I { B (i) }{ C (i) }{ D (i) } { F (i) }{ I (i) }{ G (i) } { A (i) }{ H (i) }{ E (i) }
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{True or False, e5 x e3 = e8. + TRUE - FALSE
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{Chemistry phenomena associated with metallicity are - blue main sequence stars + [H] + log10(NFe/NH)star - ln(NFe/NH)star + approximately 1.8 percent of M⊙ + [Fe/H]
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{Yes or No, For preliminary calculations, neglecting all fields components higher than quadrupolar, an inhomogenic Hill differential equation can be used as an approximation. + Yes - No
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{Chemistry phenomena associated with olivines are + substituting values for y from 0 to 1 produce ideal compositions + forsterite Mg2SiO4 - atmospheres + fayalite Fe2SiO4 + silicates - plastic
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{Mathematical phenomena associated with an exponential decrease are - a positive exponent - a negative absorption coefficient + the number of atoms per cm3 + the initial absorption of a monolayer + the absorption cross section in cm2 - thinness of material
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{Statistical phenomena associated with the Gaussian function are - √ - π - x ε R + the mean - 2 + standard deviation
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Hypotheses

 * 1) Much of the mathematics used to describe models in original reseaarch/radiation astronomy was developed in physics.