How many hertz in a meter

For example, in English, there are several songs about a fictional character, Roy G. Each letter of his name stands for the first letter of a color in the rainbow, red, orange, yellow, green, blue, indigo, and violet. The letters in his name are in sequence. The human eye is the most sensitive to light with a wavelength of nm when the light is bright, and nm in low light. Not all animals are sensitive enough to color light to be able to differentiate all the colors, however.

For example, cats do not have color vision. On the other hand, some animals are much better at differentiating colors than humans are, and they can even see ultraviolet and infrared light. For an object to have a specific color means that light of a particular wavelength is reflected from or emitted by this object. Objects that appear white reflect all the colors, while objects that we see as black absorb all the colors and reflect nothing back.

A diamond is an example of an object that has very high dispersion. A diamond that is cut well is similar to a prism. The light enters the diamond and reflects from its many sides and comes out again. This makes it sparkle brilliantly.

Its cut is very important, however. With a correctly-cut diamond, the light will come inside, reflect off the sides once or twice, and then come out from the top again, where we can see it, as shown in the diagram.

Spectral analysis or spectroscopy is used to understand the chemical composition of objects. This is especially useful when a direct chemical analysis is impossible, such as with stars. A branch of spectroscopy called absorption spectroscopy measures what type of radiation the object absorbs. The chemical structure of the materials determines what kind of light it will absorb, based on the wavelengths.

This is a useful tool in analyzing what materials the object is made from. It is possible to complete this analysis at a distance, which is beneficial not only in astronomy, but also when dealing with hazardous, fragile, or very small objects. Electromagnetic radiation is energy, and so is light, so its detection is dependent on the amount of energy emitted. The longer the wavelength, the less energy is emitted. The ability of animals to detect this energy and their sensitivity to specific amounts of energy is what makes vision a reality.

This ability allows animals to differentiate between different types of electromagnetic radiation, in particular for visible light — colors. The ability of man-made technology to detect this radiation is built on the same principles. Animals and humans can detect a range of electromagnetic energy. Many animals, including humans, detect visible light in some form. In some cases this allows animals to see a range of colors, but in other cases, they can only see the difference between light and dark areas.

The photons enter the eye through the retina and are absorbed by the chemical components inside the vision receptors, called cones. The eye has another type of photoreceptors called rods, but they cannot differentiate colors. Instead, they determine how strong the light is. There are usually different types of cones in the eye. Humans have three types of cones. They absorb photons with specific ranges of wavelengths, which correspond to visible light of a range of given colors.

This triggers a chemical reaction, which, in turn, sends a neural signal through the nervous system to the visual cortex in the brain, the area that processes color information. The combination of information about how much each type of cones was stimulated is then used to determine which color is seen. While humans have 3 types of cones, some other animals such as some species of birds and fish have 4 and 5 types of cones. It is interesting that in some species females have more types of cones than do males.

Gulls that feed at the surface or plunge for food, as well as many other birds, have red or yellow oil droplets in the cones of their retinas. This oil acts as a filter and allows birds to see more colors. Reptiles also have this feature. Snakes have not only visual receptors but also a sensor that can detect infrared light.

Their sensors absorb the energy, emitted by infrared light in the form of heat. Infrared can also be detected as heat by special devices such as infrared goggles — a technology used in combat and security.

Some bats can see infrared light also, and so can some insects. Animals and devices that can track light using temperature can usually see if the area has been disturbed recently, for example, if a rodent dug a hole in the earth or if a criminal hid something in the ground. Infrared is used in telescopes as well to detect distant astronomical bodies. Other uses for infrared radiation include determining temperature changes, for example, while checking for temperature leaks, in security, in art history, in meteorology, in medicine, and many other fields.

Unlike humans, some fish can detect ultraviolet light by absorbing it. Their visual system contains pigment that is sensitive to UV. It is believed that this ability is useful for feeding behaviors and choosing mates, as well as for some other social behaviors. Some birds also detect ultraviolet light, and similar to fish this ability is commonly used in courtship, to distinguish a potential mate.

Some plant and animal material reflects UV light well, and these birds use their sensitivity to harvest food. Converting Hertz to Per Meter is easy, for you only have to select the units first and the value you want to convert.

If you encounter any issues to convert, this tool is the answer that gives you the exact conversion of units. You can also get the formula used in Hertz to Per Meter conversion along with a table representing the entire conversion.

Units Converters. Hertz Smallest. Joule Base. Gigatonne of Oil Equivalent Biggest. Result 1 Hertz is equivalent to 3. Home » Energy » Hertz to Per Meter. To calculate the frequency of a wave, divide the velocity of the wave by the wavelength.

Write your answer in Hertz , or Hz , which is the unit for frequency. If you need to calculate the frequency from the time it takes to complete a wave cycle, or T, the frequency will be the inverse of the time, or 1 divided by T. If you are talking about a periodic repetitive signal then a frequency of Hertz can be converted to a period in seconds simply by inverting it mathematically. Units of measure Nanometer nm , an SI unit of length, equal to 10 - 9 m a thousand-millionth of a meter Nanomolar nM , in chemistry, one thousand-millionth molar.

Nautical mile NM or nmi , a unit of length used for maritime and aviation purposes. Wavelength usually is expressed in units of meters. Usually frequency is measured in the hertz unit, named in honor of the 19th-century German physicist Heinrich Rudolf Hertz. The hertz measurement , abbreviated Hz, is the number of waves that pass by per second.

For example, an "A" note on a violin string vibrates at about Hz vibrations per second. The energy of each photon is equal to Planck's constant, multiplied by the frequency of the light, h is always 6. Type in your own numbers in the form to convert the units! You can do the reverse unit conversion from wavelength in meters to hertz , or enter any two units below:.

The hertz symbol Hz is the SI unit of frequency.