Deviation of Light Rays
Rules for Deviation of Light Rays during Refraction Light ray passing from rarer (air) to denser (water) medium bends towards the normal...
Spectrum from prism
Sunlight is often called white light, since it is a combination of all the visible colors. Since the index of refraction is different for...
The Total Internal Reflection & Critical Angle
Total internal reflection (TIR) is the phenomenon that involves the reflection of all the incident light off the boundary. TIR only takes...
Explain briefly what causes the twinkling of stars at night.
Solution : The light from stars suffers a series of refraction due to atmospheric layers of different densities and the different...
