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Acceleration Due to Gravity question from NEET 2024

Q25NEET 2024Easy

Acceleration Due to Gravity

The mass of a planet is 110\frac{1}{10}th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is:

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Answer: (d)

  1. g=GMR2g = \frac{GM}{R^2}; diameter half means Rp=R2R_p = \frac{R}{2}.
  2. gpg=110×4=0.4\frac{g_p}{g} = \frac{1}{10} \times 4 = 0.4
  3. gp=0.4×9.8=3.92g_p = 0.4 \times 9.8 = 3.92 m s−2^{-2}
  4. So the answer is (d).
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