$A$ transformer works on the principle of

$\tanh ^{-1}\left(\frac{1}{2}\right)+\operatorname{coth}^{-1}(2)$ is equal to

Which one of the following reactions is an example of oxidative decarboxylation?

What is the cytoskeleton composed of?

The solution of $(x^2+y^2) dx = 2xy dy$ is:

When the temperature of a black body increases,it is observed that the wavelength corresponding to maximum energy changes from $0.26 \mu m$ to $0.13 \mu m$. The ratio of the emissive powers of the body at the respective temperatures is