Definition
Light is a form of electromagnetic radiation that is visible to the human eye. It behaves both as a wave and as a particle (called a photon).
Light follows the particle-wave duality, this means that light can be like wave and particle
Speed Of Light -: 299,792,458 m/s
Nature Of Light
Light = Electromagnetic Wave
Has wavelength (λ), frequency (f), and speed (c)
Transverse wave (electric and magnetic fields oscillate perpendicular to each other and to the direction of motion)
Reflection Of Light
Reflection of light occurs when it hits a surface and hits back according to the direction
Ray Box -: Ray box is a apparatus that produces a ray of light
Wave-Particle Duality
Light exhibits properties like wavelength and frequency, which are wave characteristics.
When light hits a metal surface, electrons are ejected only if the photon has enough energy.
If light has no mass, how can it be affected by gravity?(Consider gravitational lensing or black holes.)
Why does light travel at the speed it does and not faster or slower?
What would the universe look like if the speed of light were much slower?
Why does light reflect off a surface at the same angle it hits it?(What does this reveal about the nature of surfaces and photons?)
Can a perfectly smooth surface create a perfect reflection? Or is that only theoretical?