Astronomers use ________ to determine the magnetic field of white dwarfs.

A. the Zeeman splitting of spectral lines
B. the doppler effect
C. conservation of angular momentum
D. Wien's law


Answer: A

Physics & Space Science

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If a sheet containing two very thin slits is heated (without damaging it), what happens to the angular location of the first-order interference minimum?

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One fairly crude method of determining the size of a molecule is to treat the molecule as an infinite square well (a box) with an electron trapped inside, and to measure the wavelengths of emitted photons

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Physics & Space Science

A thin converging lens is found to form an image of a distant building 24 cm from the lens. If an object is placed 16 cm from the lens, how far from the object will the image be?

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Physics & Space Science