HORTICULTURE SCIENCE
APPLICATION OF NANO TECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100, 000x smaller than a strand of hair
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The size of a football
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20x smaller than a nail
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20x smaller than a penny
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Detailed explanation-1: -A human hair is approximately 80, 000-100, 000 nanometers wide.
Detailed explanation-2: -To put the size of a nanoparticle into perspective, compare it to a human hair. One strand of human hair is about 50 to 100 micrometers thick. One nanometer is 1/1000 of a micrometer. A nanoparticle is 100 nanometers thick.
Detailed explanation-3: -c) Quantum dots are nanoscale particles, with diameters approximately 1000 times smaller than the diameter of human hair. This image shows the magnitude of the strain forces on the surface of a quantum dot’s core. d) A quantum dot’s core can have different shapes and composition.
Detailed explanation-4: -Nanotechnology involves the understanding and control of matter at the nanometer-scale. The so-called nanoscale deals with dimensions between approximately 1 and 100 nanometers. A nanometer is an extremely small unit of length-a billionth (10-9) of a meter.