Light Reflection and Refraction Class 10 in One-Shot | CBSE Class 10 Boards 2023 | Crash Course 2.0

Mukul Rathi on Instagram: "Day 265/365 of sharing my teaching practises Topic : Refraction at zero angle of incidence .Snell’s law remains valid even at zero degrees incidence. In this case, the ray does not bend, yet refraction still occurs due to the change in speed of light across media, not merely because of angular deviation. A remarkable mathematical insight appears in the air–water case: applying Snell’s law at 0° leads to the indeterminate form 0 ÷ 0, which resolves elegantly to the refr