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Universe — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsUniverse1 Mark
MCQ
The tail of the comet is due to
  • ✓
    Vaporisation of water on the comet
  • B
    Sublimation of vapour in the comet
  • C
    Cooling of water in the comet
  • D
    Vaporisation of heat in the comet
✓

Answer

Correct option: A.
Vaporisation of water on the comet
If a comet approaches the sun, the substances like water etc. on the comet, get vaporised due to the heat of Sun, and radiation pressure forces of these vapours move away from the Sun. Hence, it forms the tail of the comet.

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