Which device is used to detect the type of charge on an object?

Options

A. Telescope
B. Microscope
C. Stereoscope
D. Electroscope

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a device that can detect the type of charge (positive or negative) on an object.

2. **Evaluating Options**:
- **Telescope**: A telescope is used for observing distant objects like stars and planets. It is not used for detecting electric charges. Therefore, this option is not correct.
- **Microscope**: A microscope is used to view small objects or organisms that cannot be seen with the naked eye. It does not detect electric charges. Thus, this option is also incorrect.
- **Stereoscope**: A stereoscope is used to view two-dimensional images in three dimensions. It is not related to detecting electric charges, so this option can be eliminated.
- **Electroscope**: An electroscope is a device specifically designed to detect electric charges. It can indicate whether an object is positively or negatively charged.

3. **Conclusion**: After evaluating all the options, the electroscope is the only device that can detect the type of charge on an object. Therefore, the correct answer is the electroscope.

**Final Answer**: The device used to detect the type of charge on an object is the **electroscope**.

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