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Three masses 200 ~kg, 300 ~kg and 400 kg are placed at the vertices of an equilateral triangle with sides 20 m. They are rearranged on the vertices…

JEE Main 2026 — Physics Mechanics

2026mcqmedium

Three masses 200 kg,300 kg200 \mathrm{~kg}, 300 \mathrm{~kg}200 kg,300 kg and 400 kg are placed at the vertices of an equilateral triangle with sides 20 m. They are rearranged on the vertices of a bigger triangle of side 25 m and with the same centre. The work done in this process ____\_\_\_\_____ J. (Gravitational constant G=6.7×10−11 N m2/kg2\mathrm{G}=6.7 \times 10^{-11} \mathrm{~N} \mathrm{~m}^{2} / \mathrm{kg}^{2}G=6.7×10−11 N m2/kg2)

Official previous-year question

Held on 24 Jan 2026 · Verified 6 Jul 2026.

Options

  1. A

    2.85×10−72.85 \times 10^{-7}2.85×10−7

  2. B

    4.77×10−74.77 \times 10^{-7}4.77×10−7

  3. C

    1.74×10−71.74 \times 10^{-7}1.74×10−7

  4. D

    9.86×10−69.86 \times 10^{-6}9.86×10−6

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