Name the device which is used to detect whether an object is charged or not.

Options

A. Spectroscope
B. Electroscope
C. Microscope
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a device that can determine whether an object has an electric charge.

2. **Identifying the Device**: The device that is specifically designed to detect electric charge is called an "Electroscope."

3. **Function of the Electroscope**: An electroscope works by using metal conductors to sense the presence of charge. When a charged object is brought near the electroscope, it causes the leaves of the electroscope to either diverge or remain neutral, indicating whether the object is charged.

4. **Excluding Other Devices**: It’s important to differentiate the electroscope from other devices:
- A **spectroscope** is used to measure the spectrum of light, not for detecting electric charge.
- A **microscope** is used for magnifying small objects, which also does not serve the purpose of detecting charge.

5. **Conclusion**: Therefore, the correct answer to the question is the "Electroscope."

**Final Answer**: Electroscope

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