Question

Which of the following is a principal ray for the case of an actual physical object and a convex (converging) lens? Indicate all that apply D A ray departing from the object along a line parallel to the principal axis of the lens, at the plane of the lens, adopts a path that takes it through the focal point on the other side of the lens A ray departing from the object along a line parallel to the principal axis of the lens, at the plane of the lens, adopts a path along the line that passes through the focal point on the same side of the lens as the object A ray departing from the object along a line that takes it through the center of the lens, at the plane of the lens, continues along that same path A ray departing from the object along a line that pass through the focal point on the other side of the lens, at the plane of the lens adopts a path parallel to the principal axis of the lens ting from the object along a line passing through the focal point on the same side of the lens as the object at the plane of the lens, adopts a path parallel to the principal axis of the lens

Answer 1

Solution) options (1) ,(3) and (4) are correct

Any incident ray travelling through the focal point on the way to the lens will retract through the lens and travel parallel to principal axis .

If an incident ray passes through center of lens will continue in same direction in which it had entered the lens