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Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU at atandard temp. pressure
is equal to ozone column thickness of
  • a)
    0.1 ppb
  • b)
    1.0 ppb
  • c)
    0.01 ppb
  • d)
    0.001 ppb
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU a...
Ozone Column Thickness and Dobson Unit (DU)

Ozone Column Thickness
The ozone layer is a region in the Earth's stratosphere that contains a high concentration of ozone molecules. Ozone is a gas composed of three oxygen atoms (O3) and plays a crucial role in protecting the Earth from harmful ultraviolet (UV) radiation from the Sun.

Ozone column thickness refers to the vertical extent or depth of the ozone layer in a particular column of atmosphere. It is measured in units called Dobson Units (DU).

Dobson Unit (DU)
Dobson Unit (DU) is the unit used to measure the ozone column thickness. It is named after G.M.B. Dobson, who was a British physicist and meteorologist. The Dobson unit is defined as the thickness of an ozone layer that, if compressed to standard temperature and pressure (STP), would occupy a height of 0.01 millimeters (mm).

In simpler terms, 1 Dobson Unit (DU) represents the thickness of the ozone layer that would result from compressing the ozone gas to a standard condition.

Conversion of Dobson Unit to Parts Per Billion (ppb)
To understand the conversion of Dobson Units to Parts Per Billion (ppb), we need to consider the concentration of ozone in the atmosphere.

Parts Per Billion (ppb) is a unit used to measure the concentration of a substance in a given volume of air. It represents the number of molecules of a particular substance per billion molecules of air.

The conversion factor from Dobson Units to Parts Per Billion (ppb) depends on the vertical extent of the atmosphere being considered. For the total atmospheric column, the conversion factor is approximately:

1 DU = 1.0 ppb

This means that 1 Dobson Unit (DU) is equivalent to 1.0 Parts Per Billion (ppb) of ozone concentration in the entire atmospheric column.

Correct Answer
From the given options, the correct answer is option 'B' which states that 1 DU is equal to 1.0 ppb of ozone concentration. This conversion factor is widely accepted and used in atmospheric science and ozone research.

It is important to note that the conversion factor may vary for specific layers or regions of the atmosphere. However, for the total ozone column, the conversion factor of 1 DU = 1.0 ppb is commonly used as a standard reference.
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Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU a...
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Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU at atandard temp. pressureis equal to ozone column thickness ofa)0.1 ppb b)1.0 ppbc)0.01 ppb d)0.001 ppbCorrect answer is option 'B'. Can you explain this answer?
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Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU at atandard temp. pressureis equal to ozone column thickness ofa)0.1 ppb b)1.0 ppbc)0.01 ppb d)0.001 ppbCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU at atandard temp. pressureis equal to ozone column thickness ofa)0.1 ppb b)1.0 ppbc)0.01 ppb d)0.001 ppbCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Dobson Unit (DU) is used to measure the ozone column thickness. 1 DU at atandard temp. pressureis equal to ozone column thickness ofa)0.1 ppb b)1.0 ppbc)0.01 ppb d)0.001 ppbCorrect answer is option 'B'. Can you explain this answer?.
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