State the effect of the following changes on the X rays emitted by Coolidge X-ray tube :
Filament temperature is increased. 

Explanation

To analyze the effect of increasing the filament temperature in a Coolidge X-ray tube on the emitted X-rays, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Understanding the Role of the Filament**:
- The filament in a Coolidge X-ray tube is heated to produce electrons through a process called thermionic emission.

2. **Effect of Increasing Filament Temperature**:
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