A particle having almost zero mass and exactly zero charge is
Can a paticle have (i) zero speed and non - zero velocity ? (ii) constant velocity but a varying speed ? (iii) constant speed but a varying velcoity ?
When a particle is undergoing motion, the diplacement of the particle has a magnitude that is equal to or smaller than the total distance travelled by the particle. In many cases the displacement of the particle may actually be zero, while the distance travelled by it is non-zero. Both these quantities, however depend on the frame of reference in which motion of the particle is being observed. Consider a particle which is projected in the earth's gravitational field, close to its surface, with a speed of 100sqrt(2) m//s , at an angle of 45^(@) with the horizontal in the eastward direction. Ignore air resistance and assume that the acceleration due to gravity is 10 m//s^(2) . There exists a frame (D) in which the distance travelled by the particle is minimum. This minimum distance is equal to :-
A particle has a linear momentum p and position vector r. the angular momentum of this particle about the origin will not be zero under the conditions
Statement-1 : It is not necessary for a particle to move in a circular path to define angular momentum. It can be defined about any point in space. Statement-2 : Particle moving in a straight line has non-zero angular momentum about a point which is not lying on the path of the particle.
A particle of mass m has momentum p. Its kinetic energy will be
Which of the following has a non zero dipole moment ?
Read each staremnt below carefully and state with reasons and expamples if it is true or false , (a) with zero speed at an instant may have non-zero accelration at that instant (b) with zero speed may have non-zero velocity (c ) with positive speed must have zero accleration (d) with positive value of acceleration must be speeding up.
Which of the following compounds has a non-zero dipole moment/
AAKASH INSTITUTE-ALTERNATING CURRENT -Assignment (Section-J) (Aakash Chailengers Questions)
