Cannizzaro reaction is not shown by

The curve between charge density and distance near a $P-N$ junction will be:

The incentre of the triangle formed by the lines $x+y=1$,$x=1$,and $y=1$ is

The angle between the tangents drawn to the parabola $y^2=4x$ from the point $(1,4)$ is

The intensity of the magnetic induction field at the centre of a single turn circular coil of radius $5 ~cm$ carrying a current of $0.9 ~A$ is:

$A$ bullet of mass $m$ strikes a block of mass $M$ connected to a light spring of stiffness $k,$ with a speed $v_0.$ If the bullet gets embedded in the block,then the maximum compression in the spring is