During a viva or oral examination on the experiment of diffraction of a beam over a single slit, the following are some possible questions that could be asked:
- What is the principle behind the phenomenon of diffraction?
- Describe the setup used in the experiment to observe diffraction of a beam over a single slit.
- Explain the role of a single slit in the diffraction experiment.
- How does the width of the slit affect the diffraction pattern?
- What is the relationship between the size of the slit and the width of the central maximum in the diffraction pattern?
- How does the distance between the slit and the screen affect the observed diffraction pattern?
- What is the nature of the diffraction pattern obtained on the screen?
- Can you explain why a diffraction pattern consists of a central maximum and a series of alternating bright and dark fringes?
- How would the diffraction pattern change if a narrower or wider slit were used?
- Can you describe any practical applications of diffraction phenomena?
- How does the wavelength of the incident light affect the diffraction pattern?
- What other factors can influence the observed diffraction pattern apart from the slit width and distance to the screen?
- Explain the concept of the single-slit diffraction formula and how it relates to the experiment.
- What are the limitations of using a single slit for studying diffraction?
- Can you suggest any modifications or improvements to the experimental setup to enhance the observation of diffraction effects?
These questions cover various aspects of the diffraction experiment, including the underlying principles, experimental setup, observed patterns, influencing factors, and theoretical concepts associated with single-slit diffraction. Be prepared to provide clear explanations and demonstrate a good understanding of the topic.