A) \[\frac{8}{9}\]
B) \[\frac{7}{9}\]
C) \[\frac{5}{7}\]
D) 1
Correct Answer: A
Solution :
\[g_{at\,height}^{'}=\frac{g}{\left( 1+\frac{h}{R} \right)}=\frac{g}{\left( 1+\frac{R}{2h} \right)}=\frac{4g}{9}\] \[g_{at\,\,depth}^{'}=g\left( 1-\frac{d}{R} \right)=g\left( 1-\frac{R}{2R} \right)=\frac{g}{2}\] Ratio \[=\frac{8}{9}\]You need to login to perform this action.
You will be redirected in
3 sec