A science teacher labelled three glass slides as P, 0 and R. She paint...
**Explanation:**
The correct answer is option 'B' - In slide Q as it is translucent.
**Translucent, Opaque, and Transparent:**
Before explaining the answer, let's understand the terms translucent, opaque, and transparent.
- **Translucent**: Translucent materials allow some light to pass through them, but they scatter the light in different directions. This makes objects seen through translucent materials appear blurry or hazy. For example, frosted glass, wax paper, and some plastics are translucent.
- **Opaque**: Opaque materials do not allow light to pass through them. When light strikes an opaque material, it is either absorbed or reflected. Objects cannot be seen through opaque materials. For example, wood, metal, and stone are opaque.
- **Transparent**: Transparent materials allow light to pass through them without scattering. This means objects can be seen clearly through transparent materials. For example, clear glass and water are transparent.
**Explanation of the Answer:**
The answer is option 'B' - In slide Q as it is translucent.
- Slide P was left as such, meaning it was not painted. Therefore, slide P retains its original properties, which are not mentioned in the question. Since it is not mentioned whether the slide P is translucent, opaque, or transparent, we cannot conclude that the mark on the white paper will be seen clearly or partially through slide P. So, option 'A' cannot be the correct answer.
- Slide R was painted with black color. Black is an opaque color, and painting the slide with black color would make it opaque. Opaque materials do not allow light to pass through them, so the mark on the white paper will not be seen through slide R. Therefore, option 'C' cannot be the correct answer.
- Slide Q was painted with light blue color. Light blue is a translucent color, and painting the slide with a translucent color would make it translucent. Translucent materials allow some light to pass through them. Although the light passing through may be scattered, the mark on the white paper will still be partially visible through slide Q. Therefore, option 'B' is the correct answer.
- Option 'D' states that the paint does not change the nature of glass. While this is generally true, the paint can change the transparency or translucency of the glass slide. In this case, the paint on slide Q changes its translucency, allowing some light to pass through.
Therefore, the correct answer is option 'B' - In slide Q as it is translucent.
A science teacher labelled three glass slides as P, 0 and R. She paint...
Q as translucent
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