Two particles are oscillating along the same line with the same frequency and same amplitude. They meet each other at a point mid-way between the mean position and extreme position while going in opposite direction. The phase difference between their motions of

Two particles are executing simple harmonic of the same amplitude (A) and frequency omega along the x-axis . Their mean position is separated by distance X_(0)(X_(0)gtA). If the maximum separation between them is (X_(0)+A), the phase difference between their motion is:

A particle doing simple harmonic motion amplitude = 4 cm time period = 12sec The ratio between time taken by it in going from its mean position to 2cm and from 2cm to extreme position is

The time period of a particle executing S.H.M. is 1 s. If the particle starts motion from the mean position, then the time during which it will be at mid way between mean and extreme position will be

Two identical discs of same radius R are rotating about their axes in opposite directions with the same constant angular speed omega . The discs are in the same horizontal plane. At time t-0, the points P and Q are facing each other as shown in the figure. The relative speed between the two points P and Q is v_r , As a function of time, it is best represented by

The resultant of two rectangular simple harmonic motion of the same frequency and unequal amplitude but differing in phase by pi//2 is

Two pendulums start oscillating in the same direction at the same time. Their time periods are 2 s and 1.5 s respectively , then the phase difference between them when the smaller pendulum has completed one vibration , will be

Two positive charges of same magnitude are kept 20 cm apart. A point between the charges will have zero intensity is at

Two point A and B are situated at the same distance from the phase difference between the light waves passing throught A and B will be

Two particles are simultaneously projected in the horizontal direction from a point P at a certain height. The initial velocities of the particles are oppositely directed to each other and have magnitude v each. The separation between the particles at a time when their position vectors (drawn from the point P are mutually perpendicular, is

2 balls have masses of 50 gm and 100 gm respectively and they are moving along the same line in the same direction with velocities of 3 m/s and 1.5 m/s respectively. They collide with each other and after the collision, the first ball moves with a velocity of 2.5 m/s. Calculate the velocity of the other ball after collision.