Two simple harmonic motion a shown below are at right angles. They are combined to form Lissajous figures.
x (t) = A sin ( a t + delta )
y (t) = B sin ( b t )
Identify the correct match below. Parameters curve
A. A ≠ B , a = b ; δ = 0 Parabola
B. A = B , a = b ; δ = π / 2 line
C. A ≠ B , a = b ; δ = π / 2 Ellipse
D. A = B , a = 2 b ; δ = π / 2 circle
