7.Gravitation
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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

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