The following patterns are created by the interference of monochromatic light. The shaded regions are dark bands whereas the clear regions are bright. Which pattern is caused by single-slit interference? (A) (B) (C) (D) Need Help? Read It O

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## Interference Patterns of Monochromatic Light

The following patterns are created by the interference of monochromatic light. The shaded regions are dark bands whereas the clear regions are bright. Which pattern is caused by single-slit interference?

**Pattern Descriptions:**
- **Pattern (A):** Alternating bright and dark bands of roughly uniform width and spacing.
- **Pattern (B):** Similar to (A) with more frequent bright and dark bands but of almost the same width.
- **Pattern (C):** An area with a wide bright central band and several smaller dark bands on each side, gradually decreasing in intensity.
- **Pattern (D):** Concentric circles with alternating dark and bright rings radiating from a central point.

**Diagrams:**
- **(A):** A series of alternating vertical bands (| | |).
- **(B):** More frequent alternating vertical bands with equal spacing and width (| | | |).
- **(C):** A single bright central area with thinner bands around it ( |   |   |).
- **(D):** Concentric rings showing circular symmetry.

To identify the single-slit interference pattern, observe the characteristics typically associated with it: a bright central maximum with gradually diminishing bright and dark bands on each side.

**Need Help?**
If you need further clarification on the interference patterns, please consult additional resources by clicking the "Read It" button.

>[Read it]

---

**Explanation for Educators:**
This exercise helps students identify single-slit interference patterns among various presented patterns. Single-slit interference typically produces one bright central band with diminishing bright and dark bands on either side. This setup contrasts with double-slit and other multi-slit interference patterns, which usually have evenly spaced fringes, or circular patterns caused by other optical phenomena. 

The correct identification of a single-slit interference pattern here is **Pattern (C)**, characterized by its distinctive central bright fringe and diminishing side fringes.
Transcribed Image Text:## Interference Patterns of Monochromatic Light The following patterns are created by the interference of monochromatic light. The shaded regions are dark bands whereas the clear regions are bright. Which pattern is caused by single-slit interference? **Pattern Descriptions:** - **Pattern (A):** Alternating bright and dark bands of roughly uniform width and spacing. - **Pattern (B):** Similar to (A) with more frequent bright and dark bands but of almost the same width. - **Pattern (C):** An area with a wide bright central band and several smaller dark bands on each side, gradually decreasing in intensity. - **Pattern (D):** Concentric circles with alternating dark and bright rings radiating from a central point. **Diagrams:** - **(A):** A series of alternating vertical bands (| | |). - **(B):** More frequent alternating vertical bands with equal spacing and width (| | | |). - **(C):** A single bright central area with thinner bands around it ( | | |). - **(D):** Concentric rings showing circular symmetry. To identify the single-slit interference pattern, observe the characteristics typically associated with it: a bright central maximum with gradually diminishing bright and dark bands on each side. **Need Help?** If you need further clarification on the interference patterns, please consult additional resources by clicking the "Read It" button. >[Read it] --- **Explanation for Educators:** This exercise helps students identify single-slit interference patterns among various presented patterns. Single-slit interference typically produces one bright central band with diminishing bright and dark bands on either side. This setup contrasts with double-slit and other multi-slit interference patterns, which usually have evenly spaced fringes, or circular patterns caused by other optical phenomena. The correct identification of a single-slit interference pattern here is **Pattern (C)**, characterized by its distinctive central bright fringe and diminishing side fringes.
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