Name the electromagnetic radiations which are produced when high energy electrons are bombarded on a metal target.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Context**: High energy electrons are directed towards a metal target. This process involves the interaction of electrons with the atoms of the metal.

2. **Identifying the Type of Metal**: The question specifies a "metal target," and it is often a heavy metal, such as tungsten or lead, due to their high atomic mass and ability to produce significant radiation when bombarded.

3. **Electron Interaction**: When high-energy electrons collide with the atoms of the metal target, they can transfer energy to the electrons in the metal atoms. This energy transfer can lead to two main processes: excitation of the electrons and the ejection of electrons from the metal atoms.

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