Physics Practicals

# PHY385 Module 1: Waves and Optics Kit

PHY385 Module 1 - PHY385 Student Guide April 18, 2023, 2:27 p.m.

## Activity 1.1 – The Electromagnetic Spectrum

Please make a table in your notebook to order the following forms of electromagnetic radiation from shortest to longest wavelength, and, for each, list:

Column 1: name

Column 2: Typical wavelength

Column 3: Typical photon energy

Column 4: Briefly mention of one or two applications, properties or concerns.

• Gamma Rays
• Microwaves
• Ultraviolet
• X-rays
• Visible Light

## Activity 1.2 – Is it a wave?

Hecht (edition 5) Problem 2.38 .  [Note: ask yourself: “Do these solve the differential wave equation?”  - if you are stuck, the answer is in the back of the book!]

## Activity 1.3 – Is it a travelling wave?

Hecht (edition 5) Problem 2.39 .  Identify travelling waves

## Activity 1.4 – Identifying Items in the Introductory Optics Kit

You have a box called an “Introductory Optics Kit” from PASCO.  It has 21 kinds of items in it, which are pictured in the drawings on the next 2 pages.  Each drawing has a letter.  Below is a list of 21 descriptions.  In your notebook, please make a table of Column 1: number, in order, and Column 2: corresponding letter.  For example, if you think the letter O is the color filters described in number 1, then the first row in your table should be: 1. O.

 # Name of component or components in drawing 1 Color Filters (×3): Red, Green and Blue/Green 2 Component Holders (×3) 3 Crossed Arrow Target 4 Cylindrical Lens 5 Diffraction Grating 6 Diffraction Plate 7 Diffraction Scale 8 Incandescent Light Source 9 Lenses (×3): 75, 150 and -150 mm focal lengths, Spherical Mirror: 50 mm focal length 10 Optics Bench 11 Parallel Ray Lens 12 Polarizers (×2) 13 Ray Optics Mirror 14 Ray Table 15 Ray Table Base 16 Ray Table Component Holder 17 Slit Mask (with one rectangular opening) 18 Slit Plate (with multiple slits) 19 Variable Aperture 20 Viewing Screen 21 Virtual Image Locators (×2)

## Activity 1.5

In preparation ...