Visible light is used:

Options

A. in electric bulbs and tube lights.
B. in movie screen in cinema hall.
C. in lasers.
D. All of the above.

Explanation

To solve the question "Visible light is used:", we need to analyze the provided options and determine whether visible light is utilized in each scenario.

### Step-by-Step Solution:

1. **Identify the Options**:
- Option 1: In electric bulbs and tube lights.
- Option 2: Moving in movies screen and in cinema hall.
- Option 3: In lasers.
- Option 4: All of the above.

2. **Analyze Option 1**:
- Electric bulbs and tube lights emit visible light. When these devices are turned on, they produce light that we can see.
- **Conclusion**: Visible light is used in electric bulbs and tube lights.

3. **Analyze Option 2**:
- Movies are projected onto screens in cinema halls using visible light. The images we see on the screen are made visible through the use of light that is within the visible spectrum.
- **Conclusion**: Visible light is used in movies and cinema halls.

4. **Analyze Option 3**:
- Lasers can emit light in the visible spectrum. For example, a red laser pointer emits red light, which is visible to the human eye.
- **Conclusion**: Visible light is used in lasers.

5. **Combine the Findings**:
- Since visible light is used in all three options (electric bulbs and tube lights, movies and cinema halls, and lasers), we can conclude that all the options provided are correct.

6. **Select the Final Answer**:
- Therefore, the most appropriate answer to the question is option 4: All of the above.

### Final Answer:
**Option 4: All of the above.**