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MMLU-Pro / 9677 / Why does the plasma (ion) tail of a comet always point away from the Sun?

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Why does the plasma (ion) tail of a comet always point away from the Sun?

category

physics

options

  1. The ions are following Keplerian orbits that lead away from the Sun.
  2. The conservation of the angular momentum in the tail keeps it always pointing away from the Sun.
  3. The solar wind electromagnetically "blows" the ions directly away from the Sun.
  4. The ions are repelled by the Sun's magnetic field.
  5. The gravity of other celestial bodies pulls the ions away from the Sun.
  6. The tail is a reflection of the Sun's light and therefore points away from it.
  7. The ions are naturally attracted to the colder regions of space, away from the Sun.
  8. The Sun's radiation causes a chemical reaction that propels the ions away.
  9. The heat of the Sun evaporates the ions, causing them to move away.
  10. Radiation pressure from the Sun's light pushes the ions away.

src

ori_mmlu-astronomy

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Source and history

upstream_id / Original problem ID
9677
task_id
11a4a6a5-5031-5f32-bc41-3a549dfbcc65
task_key
default--test--9677
task_revision_id
1
config / split
default / test

Official source

initial import