circular or oval pattern concentric circles center of the ripple is darker light-colored edges on the ripple edges of the ripple appear to be moving outward reflection of light off the ripple
ripple which has circular or oval pattern ripple which has concentric circles ripple which has center of the ripple is darker ripple which has light-colored edges on the ripple ripple which has edges of the ripple appear to be moving outward ripple which has reflection of light off the ripple