GCSE Physics - Visible and UV Light #67

This video covers:
- The different colours of visible light
- How light is used is optical fibres
- The concept of fluorescence with ultraviolet radiation
- How ultraviolet radiation can be used in security
General info:
- Suitable for all GCSE and IGCSE courses
- Suitable for higher and foundation tiers
- Suitable for triple and combined science
Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - Everything is relevant to your course!
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Everything is relevant to your course!
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.
Amadeus & Tom

[@anthonylee6112]

your drawings are always so good, keep doing what you are doing because you are great at it!!

[@Cognitoedu]

Aha thank you so much! Really appreciate the support 😇

[@er0driguez584]

Good job! Thank you! (: My class enjoyed this video. (:

[@miathomas_xoxo8389]

Thankyou so much for these videos!!!!!!there are really helping me understand these topics when before I couldn’t understand a thing a really appreciate these

[@Cognitoedu]

Glad you're finding the videos useful 😊

[@lexieeee5986]

Thank you very much! The videos really made me understand electromagnetic spectrum that much, more information from you plus reading books. Your videos survive me from my online class where my teacher in physics doesn't even tackle the lesson 😅. The Illustrations and the way you explained it is superb! Nice job!

[@ABDUL-RBA_editz]

Congratulations on 700k cognito 🎉 🥳

[@abbes2592]

Nowadays we use LED bulbs , they are much more efficient and safer to use , they are not made out of glass nor emitt UV

[@MimicOfficial]

God bless this man

[@RohanKumar-sb4jf]

Beautifully Explained Man🙏👌

[@jafwonta]

is the fluorescent bulb part in the AQA spec

[@yaraidk]

Thank you so much, you deserve a sub.

[@Cognitoedu]

Thanks Yara!

[@brendahdambe90]

Thanks it helps

[@mitaladenisa-andra4456]

Thank you for your work ,😀
👍 very helpful

[@Cognitoedu]

You’re very very welcome! Thanks for leaving us a comment, and good luck with all your revision!

[@philipbrady7635]

videos are amazing

[@isthatblu_]

Richard
Of
York
Gave
Battle
In
Vain

[@muhammadpatel5977]

Life saver

[@Deathstrike64]

just flip vibgyor

[@APower2004]

the same works for infrared not just visible light.

[@tont0665]

"VIBGYOR" is easier to remember than "ROY G BIV "

[@user-ji8br3dl9s]

roy g biv is easier for me

[@rehya8810]

ROY G BIV is easier as,
Richard
Of
York
Gave
Battle
In
Vein
*but i undersatnd your pov - ig its the memorising technique that helps you

[@er0driguez584]

We enjoyed your video. Reply to my comment for a virtual high five. (:

[@Abhi-wh3sy]

seeeesh