Related Questions

Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of
A One-half of the total height above base
B One-third of the total height above base
C One-fourth of the total height above base
D None of these
The C.G. of a thin hollow cone of height ‘h’, above its base lies on the axis, at a height of
A $$\frac{{\text{h}}}{3}$$
B $$\frac{{\text{h}}}{4}$$
C $$\frac{{2{\text{h}}}}{3}$$
D $$\frac{{3{\text{h}}}}{4}$$
Center of gravity of a solid cone lies on the axis at the height
A One-fourth of the total height above base
B One-third of the total height above base
C One-half of the total height above base
D Three-eighth of the total height above the base
Centre of gravity of a solid cone lies on the axis at the height
A One fourth of the total height above base
B One third of the total height above base
C One-half of the total height above base
D Three eighth of the total height above the base
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is
A $$\frac{{{\text{m}}{{\text{r}}^2}}}{2}$$
B $$\frac{{{\text{m}}{{\text{r}}^2}}}{4}$$
C $$\frac{{{\text{m}}{{\text{r}}^2}}}{6}$$
D $$\frac{{{\text{m}}{{\text{r}}^2}}}{8}$$
The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.
A Zero
B Minimum
C Maximum
D None of these
The C.G. of a right circular cone lies on its axis of symmetry at a height of
A $$\frac{{\text{h}}}{2}$$
B $$\frac{{\text{h}}}{3}$$
C $$\frac{{\text{h}}}{4}$$
D $$\frac{{\text{h}}}{5}$$
The height and weighs of a solid cone are 6 cm and 2.7 kg. The weighs of a similar cone of 5 cm height is _____ .
A 9.75 kg
B 9.25 kg
C 6.25 kg
D 5.75 kg
If a cylinder of radius 7 cm and height 9 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?
A 54 cm
B 9 cm
C 27 cm
D 13.5 cm
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.
A Equal to
B Twice
C Three times
D Four times

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