If a line has direction vector a and a plane has normal vector n with a·n=0, what is the relation between the line and the plane?

A. Line plane के parallel है / The line is parallel to the plane

Step 1: Identify line-plane relation. Step 2: a·n=0 means the line direction is perpendicular to the normal, so the line is parallel to the plane. Step 3: Memory tip: A direction perpendicular to the normal is in or parallel to the plane.

Step 1: अवधारणा line-plane relation है। Step 2: a·n=0 का मतलब line direction normal के perpendicular है, इसलिए line plane के parallel होती है। Step 3: Memory tip: normal के perpendicular direction plane में या plane के parallel होता है।