Αποτελέσματα Αναζήτησης
Simple Laser Diffraction Experiment at Home: Long story short: You will learn how to observe interference patterns at home (using the cheapest laser point you got). I will also teach you how to use your laser to measure tiny objects, like the width of your hair!!
BENDING LIGHT – DIFFRACTION. WHAT HAPPENS WHEN LASER LIGHT PASSES AROUND AN OBJECT? IF THE OBJECT IS A HAIR, CAN YOU USE THE PATTERN OF DARK AND BRIGHT SPOTS TO MEASURE ITS DIAMETER? The calculations in this lesson require that children understand and can manipulate numbers in scientific notation.
Reflection, Refraction, Diffraction introduces students to these three properties of light. Students will discover how light behaves differently when it encounters different kinds of objects. If it reaches a very smooth object, it reflects. If it passes through one medium to another, it refracts.
You can easily demonstrate diffraction using a candle or a small bright flashlight bulb and a slit made with two pencils. The diffraction pattern—the pattern of dark and light created when light bends around an edge or edges—shows that light has wavelike properties.
Diffraction Patterns. Apparatus. laser, piece of pantyhose material in a single layer. Action. The students shine the laser light through the material and observe the resulting pattern. They then stretch the material and observe how the pattern changes. The Physics. fabric forms a grating.
14.3 Intensity Distribution........................................................................................14-8. Example 14.2: Intensity of Three-Slit Interference ............................................14-11. 14.4 Diffraction.......................................................................................................14-13.
Diffraction Teacher Activity Guide. Activity 1: Wire Mesh. Set-up: Section One: Measuring the Mesh. Section Two: Predicting the Pattern. Section Three: Measuring Diffraction Patterns. Section Four: Questions. 1) Which mesh produced a larger diffraction pattern, medium, or fine mesh?
