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NEET 2022 (Phase 1) · Newton's Law of Gravitation

Newton's Law of Gravitation question from NEET 2022 (Phase 1)

Q10NEET 2022 · PHASE 1Easy

Newton's Law of Gravitation

Match List - I with List - II

Choose the correct answer from the options given below

List - IList - II
(a)Gravitational constant (G)(i)[L2T[L^{2}T −2]^{-2}]
(b)Gravitational potential energy(ii)[M[M −1L3T^{-1}L^{3}T −2]^{-2}]
(c)Gravitational potential(iii)[LT[LT −2]^{-2}]
(d)Gravitational intensity(iv)[ML2T[ML^{2}T −2]^{-2}]
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Answer: (b)

  1. F=Gm1m2r2⇒G=Fr2m1m2=[M−1L3T−2]F = \frac{Gm_1m_2}{r^2} \Rightarrow G = \frac{Fr^2}{m_1m_2} = [M^{-1}L^3T^{-2}]: (a)-(ii).
  2. Potential energy is energy: [ML2T−2][ML^2T^{-2}]: (b)-(iv).
  3. Potential V=U/m=[L2T−2]V = U/m = [L^2T^{-2}]: (c)-(i).
  4. Intensity E=F/m=[LT−2]E = F/m = [LT^{-2}]: (d)-(iii).
  5. So the answer is (b).
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