The forces, which meet at one point but their line of action do not lie in one plane,are called

Condition for a line to lie in a plane

In which species do the atoms not lie in a single plane?

If two or more lines meet in a single point then the lines are called concurrent lines. The point where they intersect is called

The lines of forces act at a common point is called as

If three or more points does not lie on the same straight line the points are called -

Which one is not a reflex action ?

Which one is not a reflex action ?