Light

Light is a kind of energy which gives us the sense of vision. Light travels in a straight line. Reflection happens when light falls on a shiny surface. The first law of reflection says, “incident ray, reflected ray and normal at the point of incidence; all lie in the same plane”. The second law of reflection says, “angle of reflection is equal to angle of incidence”. Spherical mirrors are of two types, viz. concave and convex mirrors. A concave mirror is used in solar cooker, in barber’s shop, as headlight reflector, etc. A convex mirror is used in rearview mirror of vehicles.

Light Quiz