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The distance from the center of the lens to its principal focus is called the what?
Wiki User
∙ 8y ago
Focal length
Wiki User
∙ 8y ago
Makenzie Henthorn
Makenzie Henthorn
apex learners focal length
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What is distance of principal focus from optical centre called?
Focal length
Length of a lens is the distance from the center of the lens to its principal focus?
It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.
What is the principle focus of a concave mirror?
The refleted ray are meeting/intersecting at a point on the principal axis of the mirror.This point is called the principal focus of the concave mirror
Define principal focus and principal aris?
principal focus is the ray which diverge at a point on the other side of the lensPrincipal Axis lens have two centre of culvature,the line passing through them and joining these centres is called principal axis.
The center of a circumscribed circle is called what?
the center of a circumscribed circle is called the focus.
Is the center of a circle called a focus or nucleus?
The center of a circle is called thecenter, in a way it is the focus of the special case of an ellipse which has equal major and semi major axes...
Why does a converging lens behave as a burning glass?
Convex lenses focus parallel light rays from distant sources such as the sun to a single point on the principal axis of the lens. This point is called the principal focus of the convex lens. A source such as the sun is producing enough energy to heat a substance if it is placed at the principal focus point.
What is the center of an earthquake?
It is called the focus, and the point on Earth's surface located directly above the earthquake focus is called the epicenter of the earthquake.
Underground center of an earthquake?
Earthquakes occur underground and are felt on the surface. The center of an earthquake on the surface is called the epicenter, and the center of the earthquake underground, where it occurs, is called the hypocenter or focus.
What is also known as the 'focus' - the place underground where an earthquake originates?
The Underground center of an earthquake is called the focus.
What is the center of spherical mirror?
The geometric centre of a spherical mirror is called its pole. The centre of the hollow sphere for which the mirror is a part, is called the centre of curvature. The line joining the centre of curvature and the pole is the principal axis. A light ray incident on a spherical mirror, after reflection appears to pass through the principal focus in the case of a convex mirror and passes through the focus in the case of concave mirror. The diameter of the spherical mirror gives the measure of its aperture
What is the location on the surface directly above the earthquake focus called?
epicenter
