Question

An apple and a block of iron kept inside water will experience-:
A.)Same gravitational force as in vacuum
B.)Apple will experience lesser gravitational force when in vacuum
C.)Iron will experience lesser gravitational force when in vacuum
D.)Depends on the size of the iron block

Answer 1

$$\begin{gathered} \mathrm{Answer}\mathrm{is}\mathrm{B})\mathrm{because}\mathrm{gravitational}\mathrm{force}\mathrm{depends}\mathrm{upon}\mathrm{the}\mathrm{mass}\mathrm{of}\mathrm{the}\mathrm{object}\mathrm{also}. \\ \mathrm{Since}\mathrm{gravitational}\mathrm{force}\mathrm{is}\mathrm{directly}\mathrm{proportional}\mathrm{to}\mathrm{the}\mathrm{mass}\mathrm{of}\mathrm{the}\mathrm{object}\mathrm{so}\mathrm{apple}\mathrm{will}\mathrm{experience}\mathrm{less}\mathrm{force}\mathrm{in}\mathrm{vacuum} \\ \mathrm{compared}\mathrm{to}\mathrm{iron}\mathrm{block}. \end{gathered}$$