11 Physics Work, Energy, And Power - Set No : 41 Question No :8
Question No : 8
The
potential energy of a particle in a force field is  , where  and  are positive constants and  is the distance of particle from
the centre of the field. For stable equilibrium, the distance of the particle
is |
| a) |  | b) |  |
| c) |  | d) |  |
Answer No : 8
(b)For
equilibrium  For
stable equilibrium should be positive for the value of
Here
 is +ve value for  |