THE PHYSICS CAFE CHAPTER TEN LIGHT - REFLECTION AND REFRACTION Light – an energy, which helps to see objects. Ray - single light propagation Reflection – process of sending back light Refraction – process of bending of light when light changes medium Medium – the arrangement (in which substances are equi-spaced or absent) in which light can travel Propagation – travelling of anything is called propagation of that thing Transparent – through which we can see Opaque - through which we cannot see Optical - of light Rare – more gap between particles Denser – lesser gap in particles Normal – Perpendicular (anything at 90˚) Plane – 2 dimensional surfaces Medium separating surface – the surface where two different mediums meets Gradually – slowly Virtual – not real Real - actual Erect – head is upside Inverted – h...
Comments
Post a Comment
physicscafe.in@gmail.com