An Electroencephalogram (EEG) is a non-invasive neurophysiological monitoring method used to record the electrical activity generated by the brain. It specifically measures voltage fluctuations resulting from ionic current flow within the neurons of the brain.
The electrical activity recorded by an EEG spans a range of frequencies, commonly categorized into different bands (Delta, Theta, Alpha, Beta, Gamma). The overall frequency range captured by standard EEG measurements typically extends from 1 Hz up to 50 Hz.
Therefore, the frequency range of EEG is represented as:
$1 \\text{ Hz} - 50 \\text{ Hz}$
Match the numbered parts of the vocal tract (in the diagram given below) with the correct label from those given in the box and choose the appropriate option.

LABELS a. Labial cavity |
| क | ख | ग | घ | ङ |
| /k/ | /kʰ/ | /g/ | /gʰ/ | /ŋ/ |
| प | फ | ब | भ | म |
| /p/ | /pʰ/ | /b/ | /bʰ/ | /m/ |