A Young's Double-Slit Apparatus Is Set Up

question 32

Multiple Choice

A Young's double-slit apparatus is set up.The source wavelength is 430 nm,and the double-slit spacing is 0.040 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 2.6 cm? (1 nm = 10−⁹ m)

• A) 2.9 m
• B) 2.4 m
• C) 2.2 m
• D) 1.6 m

---

Definitions:

Self-efficacy

The belief in one's own ability to succeed in specific situations or accomplish a task.

Successful Therapy

The achievement of therapeutic goals resulting in improved mental health, resolving specific problematic behaviors, beliefs, feelings, relationship issues, or somatic responses.

Dissemination

The act of spreading evidence-based practices and research findings to a wider audience, particularly in the context of mental health interventions.

Implementation

The process of putting a decision or plan into effect; execution.