If the angles of a triangle are in the ratio $4:1:1$,then the ratio of the longest side to the perimeter is

Thermodynamically the most stable form of carbon is

Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be:

What are the selected organs,tissues,or cells from a plant called in plant tissue culture?

Consider the general reaction given below at $400 \ K$: $xA_{(g)} \rightleftharpoons yB_{(g)}$. The values of $K_p$ and $K_c$ are studied under the same condition of temperature but variation in $x$ and $y$. $(i)$ $K_p = 85.87$ and $K_c = 2.586$ (appropriate units). $(ii)$ $K_p = 0.862$ and $K_c = 28.62$ (appropriate units). The values of $x$ and $y$ in $(i)$ and $(ii)$ respectively are:

In which phase of cell division do the nuclear envelope and nucleolus reappear?