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7.Gravitation
medium
પૃથ્વીની સપાટીથી $10\, km$ ઊંચાઈએ ગુરુત્વપ્રવેગનું મૂલ્ય શોધો.
Option A
Option B
Option C
Option D
Solution
$g _{h}= g _{e}\left(1-\frac{2 h}{ R _{e}}\right)$ માં $h=10 km =10^{4} m$,
$R _{e}=6.4 \times 10^{6} m$ અને $g _{e}=9.8 m s ^{-2}$ મૂકો.
$\therefore g _{h}=9.8\left[1-\frac{2 \times 10^{4}}{6.4 \times 10^{6}}\right]$
$\therefore g _{h}=9.8[1-0.003125]$
$\therefore g _{h}=9.8[0.996875]$
$\therefore g _{h}=9.769375 m s ^{-2}$
$\therefore g _{h}=9.8 m s ^{-2}$
Standard 11
Physics