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Evan Toh
Dec 31, 20231 min read
Total Internal Reflection (TIR) example 02
Solutions: a) 38.8o    b) 41.8o c) 51.2o . The ray does not emerge as total internal reflection has occurred. The angle of incidence is...
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Evan Toh
Dec 31, 20231 min read
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Evan Toh
Dec 31, 20231 min read
Lens, screen and mirror – what kind of image formed on screen
Answer: Option C
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Evan Toh
Dec 31, 20231 min read
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Evan Toh
Nov 30, 20231 min read
Demonstration of Reflection, Refraction and TIR using light source with a slit
Reflection of light using a mirror Refraction of light using various shaped optical mediums Total Internal Reflection (TIR) using a...
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Evan Toh
Nov 30, 20231 min read
Endoscope - Refractive Index
Using the formula n = 1/sin c, the higher the n , the smaller the c . With smaller c , total internal reflection can occur over a wider...
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Evan Toh
Nov 30, 20231 min read
PP2010P1Q23 and SP2014P1Q11 - Identifying what lens, focal length and image from 2 rays
These two questions are actually the same. Q23 is from 2010 Pure Physics P1 while Q11 is from 2014 Sci Physics P1. Take a look at these 2...
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