irregular shaped vessel can hold 10 kg water initially it has 2kg water and total pressure inside it is 4 atm if this container is compressed in such a way that it's volume is reduced to half calculate final pressure inside the container if aqueous tension is 1 atm at same temperature
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The power of 2, written in mathematics as √2 or 21⁄2, is the positive algebraic number that, when multiplied by itself, equals the number 2. Technically, it is called the principal square root of 2, to distinguish it from the negative number with the same property.
Geometrically is the length of a diagonal across a square with sides of one unit of length; this follows the Pythagorean theorem. It was probably the first number known to be irrational.[citation needed]
As a good rational approximation for the square root of two, with a reasonably small denominato sometimes used.
The OEIS consists of the digits in the decimal expansion of the square root of 2, here truncated to 65 decimal places:
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