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batteries light dimesions
Concave Mirrors, so that the light can be concentrated and so that it points forward. This is how we are able to see using a flashlight beam.:) Catherine
The noun 'flashlight' is a singular, common, compound, concrete noun; a word for a battery-operated portable electric light; a word for a thing.
It does depend on the kind of laser, but the main difference is that a laser emits a focused beam of light of the same wavelength (i.e. color) while a flashlight emits light of many different wavelengths, and 'beams' this light by reflecting it using a concave mirror built into it behind/around the bulb.
Photo-voltaic cells convert light energy to electric energy
batteries light dimesions
A flashlight Answer chemical, in a sealed environment.
Concave Mirrors, so that the light can be concentrated and so that it points forward. This is how we are able to see using a flashlight beam.:) Catherine
Concave mirrors in order for the light to be concentrated so that it points forward.
The noun 'flashlight' is a singular, common, compound, concrete noun; a word for a battery-operated portable electric light; a word for a thing.
light
Flashlights convert electric energy to light energy and heat energy.
It does depend on the kind of laser, but the main difference is that a laser emits a focused beam of light of the same wavelength (i.e. color) while a flashlight emits light of many different wavelengths, and 'beams' this light by reflecting it using a concave mirror built into it behind/around the bulb.
Chemical energy
Light or solar energy
The popular energy of flashlight are Rechargeable Li-on battery, Alkaline battery.
if the cell is a plant cell then the sorce of energy woukd be light. if not there is some kind on food sorce