The pair of compounds,which cannot exist together in a solution is

Where is the compound squamous epithelium found?

Which is not a similar characteristic about the electronic configuration of $Be, Mg, Ca$?

The wavelengths of two notes in air are $\frac{36}{195} ~m$ and $\frac{36}{193} ~m$. Each note produces $10$ beats per second separately with a third note of fixed frequency. The velocity of sound in air in $m/s$ is

Trees and shrubs have . . . . . . in their bark for gaseous exchange.

$A$ police party is moving in a jeep at a constant speed $v$. They see a thief at a distance $x$ on a motorcycle which is at rest. The moment the police see the thief,the thief starts moving with a constant acceleration $a$. Which of the following relations is true if the police are able to catch the thief?