mind map (Direction of light, Light , Reflection of light
Answers
Answer:
◼️Hii There ◼️
Explanation:
Light: Definition
Light is a form of energy that enables us to see things. Light starts from a source and bounces off objects which are perceived by our eyes and our brain processes this signal, which eventually enables us to see. Nature of Light
Light behaves as a: ray, e.g. reflection
wave, e.g. interference and diffraction
particle, e.g. photoelectric effect
Laws of Reflection
Light incident on another medium
When light travels from one medium to another medium it either: gets absorbed (absorption)
bounces back (reflection)
passes through or bends (refraction)
When light is incident on a plane mirror, most of it gets reflected, and some of it gets absorbed in the medium. Characteristics of light
Speed of light c=λ×μ, where λ is its wavelength and μ is its frequency.
Speed of light is a constant which is 2.998×108m/s or approximately 3.0×108m/s. Reflection of light by other media
A medium that is polished well without any irregularities on its surface will cause regular reflection of light. For example, a plane mirror. But even then some light gets absorbed by the surface.
Laws of Reflection
The incident ray, reflected ray and the normal all lie in the same plane. Angle of incidence = Angle of reflection [∠i=∠r]
