Physics

What type of lens deviates parallel light outward as though it originates at a single virtual focal point?

What type of lens brings parallel light to a single real focal point?

In optical system, what refers to the ratio of the image height to the object height?

If the linear magnification of an optical system is less than one, it means that:

A camera usually uses what type of lens to form an image on a light sensitive photographic film?

One of the common defects of vision is ______ commonly known as nearsightedness

One of the common defects of vision is _______ commonly known as farsightedness

What lens is commonly used to correct nearsightedness?

What lens is commonly used to correct farsightedness?

What is the defect of vision caused by the cornea having different planes?

In telescopes, what refers to the ratio between the angle subtended at the eye by the image and the angle subtended at the eye by the object seen directly?

What type of mirror that curves inward its center and converges parallel light to a single real focal point?

What type of mirror that curves outward toward its center and diverges parallel light as though reflected light came from a single virtual focal point behind the mirror?

What refers to an artificially made polarizing material that transmits light with only single plane of polarization?

In optical system, what refers to its ability to produce separate images of nearby objects?

What refers to a series of parallel slits that produces a spectrum through the interference of light that is diffracted?

The emission of electrons from a metal surface when light shines on it is called _________

What are high-frequency em waves emitted when fast electrons impinge on matter?

What consists of various wavelengths of light emitted by an excited substance?

What consists of various wavelengths of light absorbed when white light is passed through it