Grade 11Wave Motion
Electrons in an oscilloscope are deflected by two mutually perpendicular electric forces in such a way that at any time t the displacement is given by x = A cos cot and y = A cos (ωt + ϕy)' Describe the path of the electrons and determine its equation when (a) ϕy = 0°, (b) ϕy = 30°, and (c) ϕy = 90°.
Electrons in an oscilloscope are deflected by two mutually perpendicular electric forces in such a way that at any time t the displacement is given by x = A cos cot and y = A cos (ωt + ϕy)' Describe the path of the electrons and determine its equation when (a) ϕy = 0°, (b) ϕy = 30°, and (c) ϕy = 90°.
