Glass used for making wind screens of automobiles is

Options

A. hard glass
B. photo chromatic glass
C. safety glass
D. optical galss

Answer

To answer the question "Glass used for making wind screens of automobiles is:", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Purpose of Windscreens**:
- Windscreens are designed to protect passengers from wind, debris, and other elements while driving. They also provide structural integrity to the vehicle.

2. **Consider the Properties Required**:
- The glass used for windscreens must be strong and durable to withstand impacts.
- It should also be designed to minimize injury in case of breakage.

3. **Types of Glass**:
- There are various types of glass, such as hard glass, photochromatic glass, optical glass, and safety glass.
- Each type has different properties and uses.

4. **Select the Appropriate Glass**:
- Among the types mentioned, safety glass is specifically designed for automotive use.
- Safety glass is made to be less likely to break and, if it does break, it shatters into small, blunt pieces rather than sharp shards, reducing the risk of injury.

5. **Conclusion**:
- Therefore, the glass used for making windscreens of automobiles is **safety glass**.

### Final Answer:
**Safety glass**

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