What is the meaning of violet rays?

1 : an ultraviolet ray —not used technically. 2 : a high-frequency electric discharge from the outer surface of a one-electrode vacuum tube having violet-colored fluorescence and often used in therapeutic treatments.

What is a simple definition of ultraviolet?

1 : situated beyond the visible spectrum at its violet end —used of radiation having a wavelength shorter than wavelengths of visible light and longer than those of X-rays. 2 : relating to, producing, or employing ultraviolet radiation.

Does ray mean light?

The refracted ray or transmitted ray corresponding to a given incident ray represents the light that is transmitted through the surface.

Is ultraviolet A Colour?

“Ultraviolet” means “beyond violet” (from Latin ultra, “beyond”), violet being the color of the highest frequencies of visible light. Ultraviolet has a higher frequency (thus a shorter wavelength) than violet light. In 1960, the effect of ultraviolet radiation on DNA was established.

Is ultraviolet A color?

Ultraviolet (UV) “light” is a type of electromagnetic radiation. Purple and violet light have shorter wavelengths than other colors of light, and ultraviolet has even shorter waves than violet does; so ultraviolet is sort of “purpler-than-purple” light or “beyond violet” light.

How do you explain ultraviolet light to kids?

Ultraviolet light is a type of ionizing radiation. It can damage or kill cells. Any electromagnetic radiation (light) that has a wavelength shorter than 450 nm may cause trouble. Therefore, humans that live in places with more ultraviolet light have adapted by getting darker skins.

What shape is a ray?

In geometry, a ray is a line with a single endpoint (or point of origin) that extends infinitely in one direction.

What was the purpose of the violet ray?

A violet ray is an antique medical appliance used during the early 20th century in the obsolete medical therapy called electrotherapy. Their construction usually feature a combination of a disruptive discharge coil with an interrupter to apply a high voltage, high frequency, and low current to the human body for therapeutic purposes.

What is the definition of a ray in geometry?

Let’s learn! What is a ray? In geometry, a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction. On its way to infinity, a ray may pass through more than one point. When naming a ray, it is denoted by drawing a small ray on top of the name of the ray.

Can a violet ray be applied to human body?

The Violet Ray may be said to be a diffusion of an electrical current of tremendous power and resistance, into millions of tiny harmless units which can be applied to the tenderest and most delicate parts of the body without the slightest harm. As applied to the human body,…

Which is an example of a ray of light?

The vertex of the angles is the starting point of the rays. The sun rays are an example of a ray. The sun is the starting point or the point of origin and its rays of light extend indefinitely in our solar system.