Guard cells are helpful in:

The name of the complex ion,$[Fe(CN)_6]^{3-}$ is:

The approximate value of $(1.0002)^{3000}$ is

When a current of $2\, A$ flows in a battery from negative to positive terminal, the potential difference across it is $12\, V$. If a current of $3\, A$ flows in the opposite direction, the potential difference across the terminals of the battery is $15\, V$. The $emf$ of the battery is ............... $V$.

An electromagnetic radiation has an energy $14.4 keV$. To which region of the electromagnetic spectrum does it belong?

Which of the following pairs is incorrectly matched?