$IPM$ (Integrated Pest Management) involves

$A$ short magnetic needle is pivoted in a uniform magnetic field of induction $1 ~T$. Now,simultaneously another magnetic field of induction $\sqrt{3} ~T$ is applied at right angles to the first field; the needle deflects through an angle $\theta$ whose value is (in $^{\circ}$)

Which of the following is not an insectivorous plant?

An electromagnetic wave with frequency $\omega$ and wavelength $\lambda$ travels in the $+y$ direction. Its magnetic field is along the $+x$ axis. The vector equation for the associated electric field (of amplitude $E_0$) is:

Fructose reduces Tollen's reagent due to

$A$ satellite is revolving very close to a planet of density $\rho$. The period of revolution of the satellite is