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Question

The star Aldebaran, otherwise known as Rōhini, has a mass of 1.16 MSun, where MSun is the mass of the Sun. Express Rōhini’s approximate mass in 1030 kg.
  1. 2.3


Solution

The correct option is A 2.3
Given:

Mass of the star Rohini, MR = 1.16 MSun

MSun=2×1030 kg

MR=1.16×2×1030=2.32×1030 kg

MR2.3×1030 kg

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