The method of asexual reproduction in algae is -

An electron is projected along the axis of a circular conductor carrying current $I$. The electron will experience:

If $x > 0$ and $x^y = e^{x-y}$,then $\frac{dy}{dx}$ is equal to

Which of these is not an important component of initiation of parturition in humans?

Under which of the following conditions will a convex mirror of focal length $f$ produce an image that is erect,diminished and virtual?

If the normal to the curve $y=f(x)$ at the point $(3,4)$ makes an angle of $\frac{3 \pi}{4}$ with the positive $X$-axis,then the value of $f^{\prime}(3)$ is