Question

An irrational number between 2 and 2.5 is

विकल्प

• \[\sqrt{11}\]

• \[\sqrt{5}\]

• \[\sqrt{22 . 5}\]

• \[\sqrt{12 . 5}\]

Answer 1

Let 

`a = 2`

`b=2.5`

Here a and b are rational numbers. So we observe that in first decimal place a and b have distinct. According to question a < b.so an irrational number between 2 and 2.5 is  2.236067978 OR `sqrt5`.