How do high frequency electromagnetic waves cause ionisation?

3 years ago

1 Reply

2055 views

Yasmine Graham

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

The photon energy=hf. therefore higher frequency EM waves have higher photon energy. If the photon energy is greater than the energy needed to ionize an atom (i.e release an electron from the atom) then these EM waves (UV X-ray and gamma ray) can ionise matter.

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