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Stars and the Solar System — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceStars and the Solar System1 Mark
MCQ
The tail of a comet points away from the Sun due to:
  • A
    Centrifugal force
  • B
    Electrical repulsion
  • C
    Attraction of comet due to other planets
  • ✓
    Radiation pressure
✓

Answer

Correct option: D.
Radiation pressure
A comet is a heavenly body made of gas and dust particles. Due to solar radiations, these gas and dust particles are pushed outwards, as the comets approach the Sun. These gases which move out are said to form a tail which points away from the Sun.

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