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Hold down the T key for 3 seconds to activate the audio accessibility mode, at which point you can click the K key to pause and resume audio. Useful for the Check Your Understanding and See Answers.

Young's Experiment - Directions

The Young's Experiment interactive is quite easy to use. You will need to learn how to do two things:

Measure the distance between bright spots on the screen.
Enter a wavelength value.

The distance between bright spots on the screen is determined using the Magnified Front View of Screen panel. Tap on a bright spot (there are 11 of these bright spots). Then tap on a second bright spot. Below the front view is a text field that describes which two bright spots you tapped on and the distance between them in cm. Both pieces of information are important. Once you get your information, tap on the Got It! button so that you can calculate the wavelength and enter your wavelength.

Entering a wavelength is just as easy. All wavelength values are multiples of 10. You will use Arrow buttons in the Wavelength panel to set the wavelength value for your answer. Tapping on the larger arrows will move the wavelength value up or down by 50 nanometers (nm). Tapping on the smaller arrows will move the wavelength value up or down by 10 nanometers. Your range is from 400 nm to 800 nm. If you calculate a value outside this range then you know that your calculations are wrong. Once you have set your answer to what you wish, tap on the Check Answer button.

Getting Physics Help:

There is no need to be in the dark about this simulation (pun intended). We have two Tutorial pages that address the topic in great detail. Spend some time studying and then return for success.

Visit Young's Equation || Young's Experiment.