Three coherent waves having amplitudes 12mm, 6mm and 4mm arrive at a given point with successive phase difference of `pi/2`. Then, the amplitude of the resultant wave is

Three waves of equal frequencies having amplitudes 10 mu m, 4mu m and 7 mum arrive at a given point with successive phase difference of pi//2 . The amplitude of the resulting wave in mu m is given by

Three waves of equal frequency having amplitudes 10mum , 4mum , 7mum arrive at a given point with successive phase difference of pi//2 , the amplitude of the resulting wave in mum is given by

Three waves of equal frequency having amplitudes 10 mm, 4 mm and 7 mm superpose at a given point with successive phase difference of pi /2 . The amplitude of the resulting wave in mm is given by

Three waves producing displacement in the same direction of same frequency and of amplitudes 10etam, 4etam" and "7eta m arrive at a point with successive phase difference of pi//2 . The amplitude of the resultant wave is :--

Three waves of amplitudes 7 mm, 3 mm and 11 mm with a successive phase difference of (pi)/(2) are super - imposed. The amplitude of the resulting wave will be

Three waves of amplitudes 12mu m , 4mu m & 9 mu m but of same frequency arrive at a point in a medium with a successive phase difference of ((pi)/(2)) . Then the resultant amplitude in mu m is

Two waves arrive at a point in opposite phase , possible phase differences is

Two waves of same amplitude a and frequency v and having a phase difference of pi//2 radian, are superposed. The amplitude of resultant wave is

Two waves of the same frequency and same amplitude 'a' are reaching a point simultaneously. What should be the phase difference between the waves so that the amplitude of the resultant wave be : (i) 2a (ii) sqrt2a (iii) a (iv) zero.

When two particles performing SHM of same amplitude and frequency arriving at a point of medium simultaneously with phase difference of pi//2 , then the resultant path is