A level Physics (5.7) The diffraction grating (Optics)

Each lesson follows the AQA Physics: A Level Year 1 and AS textbook https://amzn.to/3BGFsD5

The lesson is complete and designed to be taught over a period of 90 minutes. It is fully animated and contains fully worked out answers to every question.

Learning objectives

• Explain why a diffraction grating diffracts monochromatic light in certain directions only
• If a coarser grating is used, explain the effect on the number of diffracted beams produced and on the spread of each diffracted beam
• Determine the grating spacing for any given grating, if it is not known.

The format

• A recall starter activity to help store key definitions and ideas to long term memory.
• Clear slides presented in a logical order, which can be used to talk through and explain the key concepts of the lesson.
• Questions and example slides, which can be used to model perfect exam ready answers.
• Summary questions to practice and consolidate the new knowledge gained from the lesson.