A Young's Double-Slit Apparatus Is Set Up

question 1

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:

Electricity Costs

The expense associated with the consumption of electrical energy, often reflecting rates that vary by usage levels and times.

Labour Productivity

A measure of economic performance that calculates the amount of goods and services produced per unit of labor input, often used to gauge the efficiency of workers or industries.

Wooden Packing Boxes

Wooden packing boxes are durable containers made of wood, used for storing and transporting goods safely and securely.

Job Training

The process of teaching employees the knowledge and skills necessary to perform their job duties effectively.