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Gravitation question

2023 · 31 Jan · Shift 1 · Q55
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  5. /2023 · 31 Jan · Shift 1 · Q55

Gravitation question

2023 · 31 Jan · Shift 1 · Q55

JEE MainPhysicsGravitationMCQ+4 / −1
At a certain depth "d " below surface of earth, value of acceleration due to gravity becomes four times that of its value at a height 3R\mathrm{3 R}3R above earth surface. Where R\mathrm{R}R is Radius of earth (Take R=6400 km\mathrm{R}=6400 \mathrm{~km}R=6400 km). The depth d\mathrm{d}d is equal to
  1. A
    5260 km
  2. B
    2560 km
  3. C
    640 km
  4. D
    4800 km
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