In Newton.s corpuscular theory, no attempt was made to explain

Options

A. the different colours of light
B. the speed of light
C. the laws of reflection
D. interference diffraction and polarization

Answer

To solve the question regarding what Newton's corpuscular theory did not attempt to explain, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Understanding Newton's Corpuscular Theory**:
- Newton's corpuscular theory posits that light is made up of particles (corpuscles). This theory was an early attempt to explain the nature of light.

2. **Analyzing Each Option**:
- **Option A: Different colors of light**:
- Newton did attempt to explain different colors of light through the concept of different particles (corpuscles) for each color. Therefore, this option is not correct.

- **Option B: Speed of light**:
- Newton's theory also addressed the speed of light, stating that light travels at different speeds in different media. Thus, this option is also not correct.

- **Option C: Law of reflection**:
- Newton's corpuscular theory successfully explained the law of reflection, which states that the angle of incidence equals the angle of reflection. Hence, this option is not correct.

- **Option D: Interference, diffraction, and polarization**:
- These phenomena are explained by the wave theory of light, which was not part of Newton's corpuscular theory. Newton did not attempt to explain these effects, as they arise from the wave nature of light.

3. **Conclusion**:
- The correct answer is **Option D: Interference, diffraction, and polarization**. Newton's corpuscular theory did not attempt to explain these phenomena.

### Final Answer:
In Newton's corpuscular theory, no attempt was made to explain **interference, diffraction, and polarization**.