Equation of progressive wav is given by y = 0.2cospi{(0.4 t +0.02x)-pi/6} The distance is expressed in cm and time in second. What will be the minimum distance between two particles having the phase difference of pi/2 ?

Equation of progressive wav is given by y = 0.2cospi{(0.4 t +0.02x)-pi

1.	Equation of progressive wav is given by y = 0.2cospi{(0.4 t +0.02x)-pi/6} The distance is expressed in cm and time in second. What will be the minimum distance between two particles having the phase difference of pi/2 ?
Answer» `4CM` `8cm` `25CM` `12.5cm` Solution :Req. DISTANCE `= gamma/4`