Why is the orientation of the portable radio with respect tp broadcasting station important?

Explanation

### Step-by-Step Solution:

1. **Understanding Electromagnetic Waves**: Electromagnetic (EM) waves consist of electric and magnetic fields oscillating perpendicular to each other and to the direction of wave propagation.

2. **Role of the Antenna**: The antenna of a portable radio is designed to receive these EM waves. The efficiency of the antenna in receiving signals depends on its orientation relative to the direction of the incoming EM waves.

3. **Polarization of EM Waves**: EM waves can be plane polarized, meaning that the electric field oscillates in a specific direction. For effective reception, the antenna must be aligned with this direction of the electric field.

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