Young's experiment establishes that

Options

A. Light consists of waves
B. Light consits of particles
C. Light consists of neither paritcles
D. Light consists of both partices and waves

Answer

To solve the question "Young's experiment establishes that," we will analyze the principles behind Young's double-slit experiment and its implications regarding the nature of light.

### Step-by-Step Solution:

1. **Understanding Young's Experiment**:
- Young's double-slit experiment involves shining light through two closely spaced slits and observing the pattern created on a screen behind the slits.
- This experiment is crucial in demonstrating the wave nature of light.

2. **Observation of Interference Pattern**:
- When light passes through the two slits, it creates an interference pattern of bright and dark fringes on the screen.
- The bright fringes (maxima) occur where the light waves from the two slits arrive in phase (constructive interference), while the dark fringes (minima) occur where they arrive out of phase (destructive interference).

3. **Conclusion from the Observations**:
- The formation of these interference patterns can only be explained if light behaves as a wave.
- If light were purely a particle, we would not observe such patterns; instead, we would expect two distinct spots corresponding to the two slits.

4. **Implication of the Results**:
- The results of Young's experiment support the wave theory of light, indicating that light exhibits wave-like properties.
- This leads to the conclusion that light consists of waves, as the interference pattern is a direct result of wave behavior.

5. **Final Answer**:
- Therefore, the correct conclusion from Young's experiment is that "light consists of waves."