This is called focal length.
It is called the focal length.
1235386483783344 cm
The focal point is the point where light converges after it passes through a concave lens. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged.
In art a composition's focal point is actually called the focal point. There may be multiple focal points, in which case the main one is the focal point and the others are secondary focal points. You can recognize the focal point because it is somehow set apart from the rest of the composition.
focal length
It is called the focal length.
focal length of the lens
Focal Point:The distance from the Lens to the Focal Point is called the Focal Point.
Focal length, positive number with a concave mirror, negative for a convex mirror.
1235386483783344 cm
focal length..
focal length..
The focal point is the point where light converges after it passes through a concave lens. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged.
the distance between epicentre plus its focal point( the exact point where earthquake occured, i.e. depth) is hypocentral distance.
If you shine a parallel (ie unfocussed) beam of light perpendicular to a convex lens it will focus to a point on the other side. That place is called the focal point of the lens. Its distance to the lens is called the focal length.
Focal point
The distance from the centre of the lens to the focal point.