Which of the following statement is not correct?
(1) All electromagnetic radiations travel with the same velocity
(2) Matter waves generally have velocity less than electromagnetic waves
(3) Matter waves are emitted by material particles
(4) Electromagnetic waves are associated with electric and magnetic fields but matter waves are not.

Explanation

To determine which statement is not correct among the given options, we will analyze each statement one by one.

### Step 1: Analyze Statement 1
**Statement 1:** All electromagnetic radiations travel with the same velocity.

- **Explanation:** Electromagnetic radiation, including visible light, radio waves, X-rays, etc., travels at the speed of light in a vacuum, which is approximately \(3 \times 10^8\) meters per second. This statement is correct.

### Step 2: Analyze Statement 2
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