$Taxa$ differs from $taxon$ due to being

Which one of the following correctly represents the variation of electronegativity $(EN)$ with atomic number $(Z)$ of group $13$ elements?

The curve given by $x + y = e^{xy}$ has a tangent parallel to the $y$-axis at the point

The biquadratic equation,two of whose roots are $1+i$ and $1-\sqrt{2}$,is

The focal distance of a point on the parabola $y^2 = 16x$ whose ordinate is twice the abscissa,is

In Young's double slit experiment,the $y$-coordinates of the central maximum and the $10^{th}$ maximum are $2\, cm$ and $5\, cm$ respectively. When the $YDSE$ apparatus is immersed in a liquid of refractive index $\mu = 1.5$,what will be the new $y$-coordinates?