
The prefixes nano (n), micro ( ), pico (p), are often used with units.
Which row shows their correct values?
Answer
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Hint: The prefixes like nano, micro, pico are used with units of the quantities that have very small value. For example, the charge on a body or a particle is a quantity with a very small value such that it is measured in micro-coulombs i.e. .
Complete step by step answer:
The prefixes like nano, micro, pico are used with units of the quantities that have very small value.
The prefix nano is denoted as n. The value of nano is equal to .
The prefix micro is denoted as . The value of micro is equal to .
The prefix pico is denoted as p. The value of pico is equal to .
Therefore, .
Hence, the row with correct values of nano, micro and pico is C.
Additional Information:
The names (nano, micro) itself suggest that these prefixes are used for very small values. For example, the charge on a body or a particle is a quantity with a very small value such that it is measured in micro-coulombs i.e. .
Nano is used for further smaller values. It is used with the unit metres for the wavelengths of light. I.e. nanometre (nm). One nanometre is equal to one-billionth of a metre. So you can imagine how little is one nanometer. We cannot even see it with naked eyes.
For smaller values than nano, pico is used. One pico-metre is equal to a one-trillionth of a metre. We may wonder whether things of this small size even exist or not.
Note: It is important to note that these prefixes (micro, nano and pico) are just numbers and not some units. These prefixes help us to write a big digit number in short form.
For example, consider the value of a length 0.000000005 metre. This can be written as 5nm.
Complete step by step answer:
The prefixes like nano, micro, pico are used with units of the quantities that have very small value.
The prefix nano is denoted as n. The value of nano is equal to
The prefix micro is denoted as
The prefix pico is denoted as p. The value of pico is equal to
Therefore,
Hence, the row with correct values of nano, micro and pico is C.
Additional Information:
The names (nano, micro) itself suggest that these prefixes are used for very small values. For example, the charge on a body or a particle is a quantity with a very small value such that it is measured in micro-coulombs i.e.
Nano is used for further smaller values. It is used with the unit metres for the wavelengths of light. I.e. nanometre (nm). One nanometre is equal to one-billionth of a metre. So you can imagine how little is one nanometer. We cannot even see it with naked eyes.
For smaller values than nano, pico is used. One pico-metre is equal to a one-trillionth of a metre. We may wonder whether things of this small size even exist or not.
Note: It is important to note that these prefixes (micro, nano and pico) are just numbers and not some units. These prefixes help us to write a big digit number in short form.
For example, consider the value of a length 0.000000005 metre. This can be written as 5nm.
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