1. Refraction and total internal reflection Lesson 2

2. The Endoscope There are two optical fibres One for light, to illuminate the inside of the patient One for a camera to send the images back to the doctor. Key hole surgery

3. Step into the photo You are the patient in the photos Describe your operation in medieval times Describe you operation in modern times with keyhole surgery Surgeons at Worthing and Southlands pioneer ‘keyhole’ operating techniques for the treatment of stomach cancers. Medieval surgeons open up a patient To see what is wrong.

4. Fibre optics

5. n = 2.41 Diamonds sparkle Calculate the critical angle for a diamond Sin θ c = n 2 /n 1 θ c = 24.5

11. n = 1.5 n = 1.4 n =1.6 n = 1.5 n = 1.4 n =1.6 n = 1.5 n =1.4 n =1.6 n = 1.7 n = 1.7 n =1.7

13. On a rope

15. Superposition of waves worksheet

17. Paste pictures in here (at least 4 per page)