Two Flat Glass Plates Are in Contact Along One End

question 83

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 509 nm illuminates the top plate.If 11 dark bands are counted across the top plate,what is the paper thickness? (1 nm = 10−⁹ m)

• A) 5.1 × 10−⁶ m
• B) 2.0 × 10−⁶ m
• C) 2.5 × 10−⁶ m
• D) 3.1 × 10−⁶ m
• E) ​1.5 × 10−⁶ m

---

Definitions:

Cohesiveness

The degree to which members of a group or team are united in pursuing common goals and how well they bond with each other.

Team Members

Individuals who belong to a group collaboratively working towards a common goal or objective, each contributing their skills and efforts.

Motivated

The internal condition of being eager or willing to engage in an activity or work towards a goal.

Storming Stage

The phase in team development where conflicts and competition arise as members assert their opinions, leading to clearer group structure and roles.