The tissue that forms the supporting structure in our pinna (external ear) is also found in:

The angle between the tangents drawn to the parabola $y^2=4x$ from the point $(1,4)$ is

On adding $AgNO_3$ solution into $KI$ solution,a negatively charged colloidal sol is obtained when they are in:

The solution of the differential equation $\frac{dy}{dx} = \frac{y}{x} + \frac{\phi(y/x)}{\phi'(y/x)}$ is

Select the correct statement $:-$

$A$ force of $(2\hat i + 3\hat j + 4\hat k) \; N$ acts on a body for $4 \; s$,producing a displacement of $(3\hat i + 4\hat j + 5\hat k) \; m$. The power used is ....... $W$. (in $.5$)