Give two examples from everyday life where cathode ray tubes are used

Explanation

**Step-by-Step Solution:**

1. **Understanding Cathode Rays**: Cathode rays are streams of electrons observed in vacuum tubes. They are produced when electrons are emitted from a heated cathode and travel towards the anode.

2. **Identifying Applications**: To answer the question, we need to identify common devices or technologies that utilize cathode rays.

3. **Example 1 - Television Picture Tube**: One of the most common applications of cathode rays is in traditional cathode ray tube (CRT) televisions. In these televisions, cathode rays are used to create images on the screen. The electrons emitted from the cathode strike the phosphorescent screen, producing light and forming the images we see.

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