Statement I: Thin films such as soap bubble or a thin layer of oil on water show beautiful colors when illuminated by white light.
Statement II: It happens due to the interference of light reflected form the upper surface of thin film.

Options

A. Statement I is True, statement II is True, Statement II is a correct explanation for Statement I.
B. Statement I is Ture, Statement II is Ture, Statement II is NOT a correct explanation for Statement I.
C. Statement I is True, Statement II is False.
D. Statement I is False, Statement II is True.

Explanation

To solve the question, we will analyze both statements provided and determine their validity based on the principles of wave optics, particularly focusing on thin film interference.

### Step-by-Step Solution:

1. **Understanding Statement I**:
- The first statement claims that thin films, such as soap bubbles or a thin layer of oil on water, exhibit beautiful colors when illuminated by white light.
- This is true. Thin films can produce colorful patterns due to the interference of light waves reflecting off their surfaces.

**Hint**: Think about how light interacts with different materials and how this can lead to observable effects.

2. **Understanding Statement II**:
- The second statement suggests that the colors observed in thin films are due solely to the interference of light reflected from the upper surface of the thin film.
- This statement is partially incorrect. While interference does occur due to light reflecting from the upper surface, it also involves light reflecting from the lower surface of the film. Both reflections contribute to the overall interference pattern.

**Hint**: Consider the path of light as it enters and exits the thin film. Where does it reflect, and how does this affect the observed colors?

3. **Conclusion**:
- Since Statement I is true and Statement II is false (because it does not account for the interference from the lower surface), we conclude that:
- Statement I: True
- Statement II: False

**Final Answer**: Statement I is true, and Statement II is false.

### Summary of the Solution:
- **Statement I**: True (thin films show colors due to interference).
- **Statement II**: False (interference occurs from both upper and lower surfaces, not just the upper surface).