Which compound is soluble in $NH_4OH$?

The radius of gyration of a uniform thin rod of length $L$ about an axis passing normally through its centre of mass is:

Three waves of equal frequency having amplitudes $10\, \mu m, 4\, \mu m$ and $7\, \mu m$ arrive at a given point with successive phase difference of $\pi/2$. The amplitude of the resulting wave in $\mu m$ is given by

What is the chemical name of Vitamin $B_1$?

Each element in the finite chain of resistors shown in the figure is $1\,\Omega$. $A$ current of $1\,A$ flows through the final element. What is the potential difference $V$ across the input terminals of the chain in $volt$?

What is the common name of benzene$-1,3-$diol?