When glucose reacts with bromine water,the main product is

Electrons with de-Broglie wavelength $\lambda$ fall on the target of an $X$-ray tube. The cut-off wavelength of the emitted $X$-ray is:

$N_2$ and $O_2$ are converted into monocations $N_2^+$ and $O_2^+$ respectively. Which statement is wrong?

Two point charges $+8q$ and $-2q$ are located at $x = 0$ and $x = L$ respectively. The location of a point on the $x$-axis at which the net electric field due to these two point charges is zero,is

The output $(X)$ of the logic circuit shown in the figure will be:

The minimum value of $27 \tan ^2 \theta + 3 \cot ^2 \theta$ is