A) Both together only when angle of inclination of plane is\[45{}^\circ \]
B) Both together
C) Hollow cylinder
D) Solid cylinder
Correct Answer: B
Solution :
\[t=\frac{1}{\sin \theta }\sqrt{\frac{2h}{g}\left( 1+\frac{{{k}^{2}}}{{{R}^{2}}} \right)}\]If a solid and hollow body of same shape are allowed to roll down on inclined plane then as \[{{\left( \frac{{{k}^{2}}}{{{R}^{2}}} \right)}_{s}}<{{\left( \frac{{{k}^{2}}}{{{R}^{2}}} \right)}_{H}},\]solid body will reach the bottom first with greater velocity.
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