space medium MCQ

Comet tails always point away from the Sun due to _______.

  1. Orbital motion
  2. Solar wind and radiation pressure
  3. Gravitational attraction
  4. Magnetic fields

Answer: Solar wind and radiation pressure

Ion tail aligns with solar wind magnetic field; dust tail curves due to radiation pressure; both extend anti-sunward regardless of comet's direction of travel.

Topic Solar System - Comets
Exam Relevance SSC CGL, UPSC Prelims