Home › NEET UG › physics › c11phy_grav_g_variation › Per NCERT §7.6 eqn 7.15, for an altitude of h = …
Per NCERT §7.6 eqn 7.15, for an altitude of h = 8 km above Earth (R_E = 6400 km), g decreases by approximately what fraction?
A2 %
B0.5 %
C1 %
D0.25 %
Answer & Solution
Correct answer: D. 0.25 %
NCERT §7.6: Δg/g ≈ 2h/R = 2×8/6400 = 1/400 = 0.25 %.
Related questions
Per NCERT §7.5, the dimensions of g (acceleration due to gravity) are which?Per NCERT §7.5 (shell theorem), the gravitational force on a particle OUTSIDE a uniform spPer NCERT §7.5 (eqn 7.5 onwards), the gravitational acceleration of a body INSIDE a uniforPer NCERT Example 7.6, using the Moon's orbital data (T=27.3 d, R = 3.84×10⁸ m) gives M_E Per NCERT Example 7.6 (weighing the Earth), using g and R_E gives M_E ≈ which value?Per NCERT §7.6, at height h equal to R_E above the surface, the value of g(h) becomes whicPer NCERT §7.6, the value of g at the CENTRE of the Earth (assuming uniform density) is whPer NCERT §7.6, the value of g is MAXIMUM at which location on or near the Earth?