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If you get a normal red laser pointer, you can pretty easily measure it at home.
The wavelength of a red laser pointer is typically around 670 nanometers, the one you select may state differently; make note of it.
Take one of your hairs and suspend it in front of the laser somehow, but make sure its exactly 1 meter from a flat surface.
When you turn on the laser, you should see a dashed line pattern on the board. Measure the distance from the center bright spot to the farthest bright spot you can see and count how many this is.
The thickness of your hair is (laser wavelength)*(distance to flat surface)/(distance to bright spot). Then multiply this number by the number of bright spots you counted.
So, lets say i could count up to 4 bright spots before it got too dim; i measure the distance from the center to this one to be 5 cm; laser is 670nm and my flat surface is 1 meter away. My thickness is (670*10^-9)*(1)*4/ (.05) = 54*10^-6 meters = 54 micrometers
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What is the average thickness of the human hair in scientific notation?
very thin
What is the easiest way to measure the thickness of a sheet of paper?
stack up 100 of the same type of piece of paper, measure the thickness with a very accurate ruler, divide this thickness by 100
How long does hair dry with the hair drier?
depends on hair type and power capacity of hair dryerand the length and thickness of the hair
Why the metal strip should be flat or wire be kink free in screw gauge?
if the strip will flat we can measure its thickness easily but if it is not flat i.e. its surface is irregular then it will thick only from some points and its other area will be thin and we cannot measure its thickness easily.same is the reason for wire.
Describe the differences in thickness you observed between arm hair and head hair?
you arm hair is much more thinner than your head hair
How to measure the thickness of Dog Hair?
With a microscope and marked slide.
What takesa bundle of ten of these to equal the thickness of a human hair?
Million
What is the average thickness of the human hair in scientific notation?
very thin
Instrument used to measure the thickness of hair?
Micrometer caliper
What unit would you use to measure the thickness of a hair?
Units aren't used to measure anything. After you complete the measurement, using equipment suited to the purpose, you use units to describe the result of your measurement, and to tell other people about it. I would measure the thickness of a hair using a micrometer, and express the result in millimeters.
What items visible to the human eye have a thickness of 0.1 mm?
The first example: hair diameter
What is the rope thickness unit of measure?
its thickness can be measure in mm(milimeters)
What is the size of a human hair?
the diameter of human hair varies from about 40 microns to 120 microns. a micron or micrometer is a millionth of a meter. Copy paper thickness is about 100 microns (or 0.1 millimeter).
What is the size of hair (width) in millimeters?
Human hair varies in size greatly. A child's head hair can be as fine as 0.05mm. An adult's head hair can be as course as 0.25mm. Adult eye- brow hair can be as thick as 0.3mm. Hair is circular in shape, not flat like grass. Things which are circular or round in shape, do not have 'thickness', they have 'diameter'.The sizes above express the Diameter of Hair. In the Imperial system of measure, human hair varies between 0.002 inch & 0.010 inch Diameter.
What is the thickness of human skin?
measured in metric: between 17 micron to 180 micron (1000 micron in 1 mm) (1 millimeter = 0.0393700787 inches
What would you measure of unit would you measure a thickness a?
What measure of units would you use to measure the thickness of a phone book
How do you measure the thickness of a pencil?
There are many ways in which you could measure the thickness of a pencil. You could use a string to measure it.
