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2021 CAIE AS & A level February March Physics Paper 12 Q. No. 29 (9702/12/F/M/21) by Sajit C Shakya - YouTube
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![SOLVED: 'The wavelength of red helium-neon laser light in air is 632.8 nm (a) What is its frequency? Hz (b) What is its wavelength in glass that has an index of refraction SOLVED: 'The wavelength of red helium-neon laser light in air is 632.8 nm (a) What is its frequency? Hz (b) What is its wavelength in glass that has an index of refraction](https://cdn.numerade.com/ask_previews/0239a08f-b060-4e2a-a2c1-0a5a1128e9ef_large.jpg)
SOLVED: 'The wavelength of red helium-neon laser light in air is 632.8 nm (a) What is its frequency? Hz (b) What is its wavelength in glass that has an index of refraction
![SOLVED:The wavelength of red helium-neon laser light in air is 632.8 nm . (a) What is its frequency? (b) What is its wave-length in glass that has an index of refraction of SOLVED:The wavelength of red helium-neon laser light in air is 632.8 nm . (a) What is its frequency? (b) What is its wave-length in glass that has an index of refraction of](https://cdn.numerade.com/previews/f5173b91-c38a-4496-8298-1acc7942e190.gif)