Viruses behave as non-living entities because outside the host cell they:

Two steel wires of same length $L$ but radii $r$ and $2r$ are connected together end to end and tied to a wall as shown. The force $F$ stretches the combination by $10 \ mm$. How far does the midpoint $A$ move in $mm$?

What are the approximate weight and diameter of $Rafflesia$ $arnoldii$?

Which of the following is associated with the conservation of forests?

If $f(x) = (x^2 - 1)^7$,then $f^{(14)}(x)$ is equal to

During the electrolysis of cryolite,aluminium and fluorine are formed in ........ molar ratio :