How does diffracted white light create a spectrum of colours?

3 years ago

1 Reply

1812 views

Hobart Hamill

Get A Free Cheatsheet For Waves 🔥

Use our concise notes and diagrams to only revise what you need to know.

By submitting your email, you agree to join our mailing list. You can unsubscribe at any time.

1 Answer

James H Verified Sherpa Tutor ✓

Enthusiastic physics and maths tutor with 31 years experience

94 reviews

White light is a mixture of all colours, and each colour has a different wavelenght. So, either by using the diffraction grating formula, or descriptive knowledge of diffraction, the longer wavelength red light is diffracted through a greater angle than the shorter wavelength blue/violet light. So you see spectra.

Found this useful? Give kudos!

I'm available for 1:1 private online tuition!

Click here to view my profile and arrange a free introduction.

Think you can help?

Need an A-Level Physics tutor?

Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.

Find an A-Level Physics Tutor