A science teacher labelled three glass slides as P Q and R. She painted slide Q with light blue colour, slide R with black colour and slide P was left as such. Then she asked students to put the slide on a white paper having (X) mark on it. Students will be able to see the mark clearly or partially

Options

A. In slide P as it is translucent
B. In slide Q as it is translucent
C. In slide R as it is opaque
D. In all the slides as paint does not change the nature of glass.

Explanation

To solve the question, we need to analyze the properties of the three glass slides (P, Q, and R) based on their colors and how they interact with light.

### Step-by-Step Solution:

1. **Identify the Properties of Each Slide:**
- **Slide P:** This slide is left unpainted, which means it is transparent. Transparent materials allow almost all light to pass through them.
- **Slide Q:** This slide is painted light blue. Light blue is a lighter color, which means it allows some light to pass through. Therefore, slide Q is translucent. Translucent materials allow some light to pass through but not all.
- **Slide R:** This slide is painted black. Black is a dark color that does not allow light to pass through. Thus, slide R is opaque. Opaque materials block all light.

2. **Determine Visibility of the Mark (X):**
- When the slides are placed on a white paper with an (X) mark:
- **Slide P (Transparent):** The mark will be clearly visible since it allows almost all light to pass through.
- **Slide Q (Translucent):** The mark will be partially visible because it allows some light to pass through but not all.
- **Slide R (Opaque):** The mark will not be visible at all since it blocks all light.

3. **Conclusion:**
- Students will be able to see the mark clearly through slide P and partially through slide Q. They will not see the mark at all through slide R.

### Final Answer:
- The students will be able to see the (X) mark clearly through slide P and partially through slide Q. They will not see the mark through slide R.