Two Flat Glass Plates Are in Contact Along One End

question 18

Multiple Choice

Two flat glass plates are in contact along one end and are separated by a sheet of tissue paper at the other end.A monochromatic source of wavelength 490 nm illuminates the top plate.If 20 dark bands are counted across the top plate,what is the paper thickness? (1 nm = 10−⁹ m) Note that a dark band occurs where the plates contact.

• A) 2.7 × 10−⁶ m
• B) 3.4 × 10−⁶ m
• C) 4.7 × 10−⁶ m
• D) 4.9 × 10−⁶ m

---

Definitions:

Role Ambiguity

The uncertainty experienced by individuals about their job responsibilities, expectations, and requirements.

Role Conflict

A situation where an individual faces contradictory demands or expectations in their job roles.

Information Sharing

The practice of distributing or exchanging information or data between individuals, groups, or organizations.

Unique Information

Data or knowledge that is distinct and not commonly known, providing a competitive advantage or insight.