[(\sqrt{\dfrac{7}{5}})R] The moment of inertia of a sphere of mass M and radius R about an axis passing through itscentre

For Competitive Exams

The moment of inertia of a sphere of mass M and radius R about an axis passing through its
centre is $\\dfrac{2}{5} MR^2$. The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is:

$\dfrac{7}{5}R$

$\dfrac{3}{5}R$

$(\sqrt{\dfrac{7}{5}})R$

$(\sqrt{\dfrac{3}{5}})R$

Additional Questions

A gas mixture consists of 2 moles of O2 and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total internal energy of the system is	Answer
A body of mass 6 kg is acted upon by a force which causes a displacement in it given by x=$\\dfrac{t^2}{2}$ metre, where t is the time in second. The work done by the force in 2 seconds is	Answer
Two rods of same length and area of cross-section and Young s moduli Y, and Y2 are joined end to end. The equivalent Young s modulus for the composite rod is	Answer
If a person can throw a stone to maximum height of h metre vertically, then the maximum distance through which it can be thrown horizontally by the same person is	Answer
A thin copper wire of length l increases in length by 1%, when heated from 0°C to 100°C. If a thin copper plate of area (2 l * l) is heated from 0°C to 100°C, the percentage increase in its are would be	Answer
3 mole of hydrogen is mixed with 1 mole of neon. The molar specific heat at constant pressure is	Answer
3. Two conducting rings P and Q of radii r and 2r moving uniformly in opposite directions with centre of mass velocities 2v and v respectively on a conducting surface S. There is a uniform field of magnitude B perpendicular to the plane of the rings. The potential difference between the highest points of the two rings is	Answer
In an electromagnetic wave, the magnetic field is given by $B_y=210^{-7}sin(0.510^3x+1.5*10^{11}t)T.$ The intensity of e.m. wave is about	Answer
A cubical vessel of height 1 m is full of water. What is the amount of work done in pumping water out of the vessel ? (Take g = 10 m $S^2$)	Answer
The resistance across A and B in the figure below will be	Answer

Share with Friends