Astrophysics (AQA A-Level Physics): Quizzes

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At what distance from Earth is absolute magnitude defined?

10 parsecs

What fraction of a degree is one arcsecond?

13600\frac{1}{3600}

What types of aberration does an achromatic doublet correct?

Spherical and chromatic

What is the formula for Hubble's Law?

v=H0dv = H_0 d

What is the formula for the magnifying power of a telescope?

M=fobjectivefeyepieceM = \frac{f_{\text{objective}}}{f_{\text{eyepiece}}}

What is the formula for lens power in terms of focal length?

P=1fP = \frac{1}{f}

In Stefan's Law, luminosity is proportional to which power of temperature?

Fourth power (T4T^4)

According to Wien's Displacement Law, how does peak wavelength relate to temperature?

Inversely proportional

What is the absolute magnitude of a Type Ia supernova?

−19.3-19.3

A parsec is the distance at which a star's parallax angle equals what value?

1 arcsecond

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Stellar evolution

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Stellar evolution

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Stellar evolution

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