If the peak value of the magnetic field of an electromagnetic wave is $30 \times 10^{-9} \ T$,then the peak value of the electric field is (in $Vm^{-1}$)

Which of the following cylindrical rods will conduct the most heat when their ends are maintained at the same steady temperatures?

What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?

If $\tan \theta + \cot \theta = 2$,then $\sin \theta$ is equal to

$A$ convex lens of focal length $0.15 \ m$ is made of a material of refractive index $\frac{3}{2}$. When it is placed in a liquid,its focal length increases by $0.225 \ m$. The refractive index of the liquid is

Marchantia is an example of.