Nitrifying bacteria :

If $\log_{7} 2 = m$,then $\log_{49} 28$ is equal to

The relation between the current $i$ (in ampere) in a conductor and the time $t$ (in second) is $i=12t+9t^2$. The charge passing through the conductor between the times $t=2 \ s$ and $t=10 \ s$ is (in $C$)

$A$ string of length $L$ is fixed at one end and carries a mass $M$ at the other end. The string makes $2/\pi$ revolutions per second around the vertical axis through the fixed end as shown in the figure,then the tension in the string is:

The packing efficiency of the two-dimensional square unit cell shown below is ........... $ \% $

What is Thuringioside?