UPSC NDA II 2025 General Ability Paper

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Question : 53 of 150

Marks: +1, -0

One parsec in astronomical units (A.U.) is about

2 × 10³ A.U.
2 × 10⁴ A.U.
2 × 10⁵ A.U.
2 × 10⁶ A.U.

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