If density of earth increased $4 $ times and its radius become half of what it is, our weight will
Be four times its present value
Be doubled
Remain same
Be halved
(b) $g \propto \rho \,R$
The radii of two planets are respectively ${R_1}$ and ${R_2}$ and their densities are respectively ${\rho _1}$ and ${\rho _2}$. The ratio of the accelerations due to gravity at their surfaces is
Write the difference between $G$ and $g$.
During motion of a man from equator to pole of earth, its weight will ……. $\%$ (neglect the effect of change in the radius of earth)
If all objects on the equator of earth feel weightless then the duration of the day will nearly become ……. $hr$
If the change in the value of $‘g’$ at a height $h$ above the surface of the earth is the same as at a depth $x$ below it, then (both $x$ and $h$ being much smaller than the radius of the earth)
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