It is reflected back parallel to the principal axis. (apex)
It is reflected back parallel to the principal axis. (apex)
It is reflected back parallel to the principal axis. (apex)
It goes to "the point at infinity"
The focus is the point at which light rays converge after passing through a lens or reflecting off a mirror. For a concave mirror or converging lens, the focus is in front of the mirror/lens. For a convex mirror or diverging lens, the focus is behind the mirror/lens.
The error produced by the thickness of the mirror is known as spherical aberration. This occurs when light rays passing through the outer edges of the mirror focus at a different point compared to those passing through the center, leading to a blurry or distorted image.
The light source for a microscope is typically a halogen bulb. The mirror below the diaphragm helps to direct and focus the light onto the specimen. Adjusting the mirror angle can control the amount and direction of light passing through the diaphragm to illuminate the specimen.
true
It is called a Cassegrain. The small convex subreflector is a hyperboloid with one focus at the focus of the main mirror, and the other focus just behind the main mirror where the eyepiece is.
The distance at which the light rays bent by the lens (or mirror) converge into a coherent image.
Any ray that travels parallel to the principal axis of a concave mirror will reflect through the mirror's focus after reflection. This is known as the "law of reflection" for concave mirrors.
A ray of light traveling parallel to the principal axis of a concave mirror will be reflected and pass through the focal point of the mirror. This is known as the property of a concave mirror called "reflection through the focus."
focus