Q1. Give some examples of the applications of lasers in the medical field, industry, and in commerce?
Q2. Describe total internal reflection
Q3. Define the criticical angle
Q4. Why do diamonds sparkle more than oridinary glass? is it due to the index of refraction? the number of facets? or something else entirely? explain what happens and use sketches.
Q5. Derive the critical angle formula from snell's law (n1*sin(Oincident) = n2*sin(Orefraction)