AP EAPCET 2023 - 15th May Evening Shift

A truck moving with a constant velocity $12 \mathrm{~ms}^{-1}$ crosses a car moving from rest with uniform acceleration $2 \mathrm{~ms}^{-2}$. The distance the car has to travel from the starting point to cross the truck again is

Which of the following electron arrangement does not obey Hund's rule?

If -1 is a twice repeated root of the equation $a x^3+b x^2+c x+1=0$, then

A block of mass $m$ and charge $q$ is connected to a point owith an inextensible string. This system is on a horizontal table. An electric field $E$ is applied perpendicular to the string and in the plane of the horizontal table. The tension in the string when it becomes parallel to the electric field is

The de Broglie wavelength of an electron travelling with $20 \%$ of velocity of light is

$$\left(h=6.626 \times 10^{-34} \mathrm{Js} ; m_e=9.1 \times 10^{-31} \mathrm{~kg}\right)$$

$\alpha$ and $\beta$ are the roots of the equation $x^2-a x+b=0$. If $\alpha^2+\beta^2$ and $\alpha^3+\beta^3$ are the roots of the equation $A x^2+B x+C=0$, then $C=$