The whorl of bracts present below the inflorescence of $Helianthus$ $(sunflower)$ is

Two electric bulbs rated $P_1 \text{ watt}, V \text{ volt}$ and $P_2 \text{ watt}, V \text{ volt}$ are connected in parallel and $V \text{ volt}$ is applied to them. The total power consumed will be

The equation of the plane passing through $(1, 1, 1)$ and $(1, -1, -1)$ and perpendicular to $2x - y + z + 5 = 0$ is

What are the algal components of a lichen called?

An electromagnetic radiation has an energy $14.4 keV$. To which region of the electromagnetic spectrum does it belong?

In which of the following reactions does $H_2O_2$ act as a reducing agent?