Question

In which of the following units is thickness of ozone layer measured?

• A. Dobson
• B. Joule
• C. Newton
• D. Decibel

Answer 1

The Correct Option is A

The thickness of the ozone layer is measured in units called Dobson. This unit is named after Gordon Dobson, a researcher who developed one of the first instruments to measure ozone levels in the Earth's atmosphere. The Dobson Unit (DU) is a measure of the total amount of ozone in a column of air stretching from the Earth's surface to the edge of space. In essence, 1 Dobson Unit represents a layer of ozone that would be 0.01 millimeters thick under standard temperature and pressure conditions. Therefore, among the provided options, the correct unit for measuring the thickness of the ozone layer is Dobson.

Answer 2

The thickness of the ozone layer is typically measured in Dobson units (DU). A Dobson unit is defined as the thickness of the ozone layer if it were compressed to standard temperature and pressure (STP), and is used to describe the concentration of ozone in the atmosphere.

• 1 Dobson unit (DU) corresponds to 0.01 millimeters of ozone at STP.
• The average ozone concentration in the ozone layer is about 300 DU, which corresponds to a thickness of about 3 millimeters if the ozone were compressed to the ground level.