A Young's Double-Slit Apparatus Is Set Up

question 27

Multiple Choice

A Young's double-slit apparatus is set up.A screen is positioned 1.16 m from the double slits,and the spacing between the two slits is 0.0500 mm.The distance between alternating bright fringes is 1.42 cm.What is the light source wavelength? (1 nm = 10−⁹ m)

• A) 612 nm
• B) 280 nm
• C) 490 nm
• D) 355 nm

---

Definitions:

Cannon-Bard Theory

A concept suggesting that emotional feelings and physical arousal happen at the same time but are separate from each other.

Autonomic Nervous System

The part of the nervous system responsible for controlling bodily functions that are not consciously directed, such as breathing, the heartbeat, and digestive processes.

James-Lange Theory

The James-Lange Theory suggests that emotions occur as a result of physiological reactions to events, meaning the body's response comes first, leading to the emotional experience.

Arousal

A physiological and psychological state of being awake or reactive to stimuli, involving the brain, hormones, and physical responses.