Silver bromide (not bromine) is one of the silver compounds used to create the "emulsion" that records the latent image before it is developed. It is the most widely used of the silver salts, which are compounds that react to light and create the latent image.
Bromine (not silver bromine) is released when the developer acts on the silver halides if the emulsion is silver bromide based. I'm not sure if that is the result of a chemical reaction between the silver halide and film developer, or if the bromine atoms are already present due to the reaction between light and the silver halide. I only mention this because bromine is in your question although I think you meant bromide. The bromine can be utilized to reduce image contrast in high contrast scenes, but I believe it is not widely known how to develop film in this manner, hence you probably weren't asking for the usefulness of bromine.
The image is created by using one or more of several silver compounds that are capable of doing the job. Silver Iodide is just one of them.
it is really sensitive to light+
The least effective property used to identify most minerals would be the color. The color of a mineral can be altered by impurities.
It is the characteristic
Its mineral composition.
Magnesium: useful, silver, metal.
streak
it is sensitive to light
Finely powdered silver is black in color (which is what made it useful for black and white photography - now largely superseded by digital photography).
cyanogen bromide
All properties are useful there is no one property that is "least useful".
You can look for schools specifically geared towards photography on Photography Schools fanpage - http://www.facebook.com/photographyschoolsThe fanpage also has fun facts and useful info on photography and answer your questions regarding photo schools!
Photography schools can teach someone how to become a better photographer. The can learn things like how to adjust lighting, proper angles, and a variety of skills that can be useful when taking pictures.
There are many classes on digital photography, and some can be found at your local community college. Online websites can also be useful, digital-photography-school.com gives great help with instruction on digital photography.
Density is the least useful property for identification because different specimens of the same type of mineral can vary in size. -Color is the least useful property for identification because it is the most obvious property.
If it is a guard dog it guards property, that is useful.
The least effective property used to identify most minerals would be the color. The color of a mineral can be altered by impurities.
The easiest way to get a photography degree is to find graduate programs in photography. Fine art photography is a common option. But having the degree is mostly useful if planning to be a higher education teacher. In freelance photographing the clients tend to look more at the portfolio than the schooling.
This depends on your needs !