What is Antenna An antenna is a metallic conductor system capable of radiating and capturing electromagnetic energy. It converts electrical energy into electromagnetic energy & electromagnetic energy into electrical energy.

Refraction of Light Bending of light when it enters from one optical medium to another is called refraction of light. Light travels with different speeds in different transparent medium.Its speed…

Reflection of Light After striking with a surface, Return of light, Sound, Wave or any body is called reflection. Light rays travel in straight line.In physics, we use straight lines…