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NEET PHYSICSUNITS AND MEASUREMENTSEasy

Question

Parsec is a unit of :

A

Distance

B

Velocity

C

Time

D

Angle

Step-by-Step Solution

  1. Definition: Parsec (symbol: pc) is a practical unit of length used to measure large distances to astronomical objects outside the Solar System .
  2. Etymology: The name is a portmanteau of parallactic second.
  3. Physical Definition: It is defined as the distance at which an arc of length equal to one astronomical unit (1 AU, the average distance between the Earth and the Sun) subtends an angle of one second of arc (1").
  4. Conversion: According to NCERT 'Table 1.2 Some units retained for general use', 1 parsec ≈3.08×1016\approx 3.08 \times 10^{16} meters .
  5. Conclusion: Since it measures length (meters), it is a unit of Distance.

Exam Context & Concepts Covered

This question aligns with the NEET PHYSICS syllabus, specifically targeting concepts from UNITS AND MEASUREMENTS. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

PHYSICSUNITS AND MEASUREMENTSparsec

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