In EEG, the waves which are low in frequency but with high amplitude are

Options

A. theta waves
B. delta waves
C. beta waves
D. alpha waves

Answer

To answer the question regarding the EEG waves that are low in frequency but have high amplitude, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding EEG Waves**: Begin by recognizing that an electroencephalogram (EEG) records the electrical activity of the brain and displays it in the form of waves. These waves can be categorized based on their frequency and amplitude.

2. **Identifying the Types of Waves**: The main types of brain waves include:
- **Delta Waves**: Low frequency (0.5-4 Hz) and high amplitude.
- **Theta Waves**: Slightly higher frequency (4-8 Hz) and moderate amplitude.
- **Alpha Waves**: Moderate frequency (8-12 Hz) and moderate amplitude.
- **Beta Waves**: High frequency (12-30 Hz) and low amplitude.

3. **Analyzing the Options**:
- **Theta Waves**: These are not low enough in frequency compared to delta waves and have lower amplitude.
- **Delta Waves**: These are characterized by low frequency and high amplitude, making them a strong candidate for the answer.
- **Beta Waves**: These are high frequency and low amplitude, so they do not fit the criteria.
- **Alpha Waves**: These have a moderate frequency and amplitude, thus also do not meet the criteria.

4. **Conclusion**: Based on the analysis, the waves that are low in frequency but have high amplitude are **Delta Waves**.

### Final Answer:
The waves which are low in frequency but with high amplitude in EEG are **Delta Waves**.

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