Diffraction Gratings - A Level Physics

This video introduces and explains diffraction gratings for A Level Physics. If you shine light, or other types of EM radiation, through a series of small slits, the waves interfere causing constructive and destructive interference at certain points. We can then use this method to calculate the wavelength of light. It is also why DVDs and CDs make beautiful rainbows. Thanks for watching, Lewis This video is recommended for anyone studying A Level Physics in the following exam boards: AQA CIE Edexcel Edexcel IAL Eduqas IB OCR A OCR B WJEC _____________________________________ MY PHYSICS WEBSITES Find even more videos organised by exam board and topic at: GCSE Physics Online ► https://www.gcsephysicsonline.com A Level Physics Online ► https://www.alevelphysicsonline.com MY YOUTUBE CHANNEL Your support in watching this video has been invaluable! To contribute towards the free videos on YouTube, make a small donation at: ► https://www.paypal.me/physicsonline FOLLOW ME ► https://www.youtube.com/physicsonline... ►   / physicsonline   ►   / gcseandalevelphysicsonline   #waves #alevelphysics #physicsonline