Reflection of Light is the phenomenon where light traveling in one medium strikes the surface of another medium and bounces back into the original medium. When a light ray hits a smooth surface like a mirror, it undergoes regular reflection, where the rays reflect in a single direction. On rough surfaces, irregular reflection occurs, scattering the rays in multiple directions. The process obeys two fundamental laws: the incident ray, reflected ray, and normal all lie in the same plane, and the angle of incidence equals the angle of reflection. Light’s behavior also reflects its dual nature, functioning as both a wave and a particle, as confirmed by experiments over centuries.
What is the definition of reflection of light?
Reflection of light is the phenomenon where light traveling in one medium strikes the surface of another medium and bounces back into the original medium.
What are the two types of reflection?
The two types of reflection are regular reflection, which occurs on smooth surfaces, and irregular reflection, which occurs on rough surfaces.
What is an incident ray?
The incident ray is the incoming ray of light that strikes the surface of a medium.
What is the angle of incidence?
The angle of incidence is the angle between the incident ray and the normal to the surface at the point of incidence.
What is the angle of reflection?
The angle of reflection is the angle between the reflected ray and the normal to the surface at the point of incidence.
What is the angle between the incident ray and the reflected ray called?
a) Angle of incidence
b) Angle of reflection
c) Angle of deviation
d) Angle of refraction
Answer: c) Angle of deviation
Which of the following surfaces will produce regular reflection?
a) Rough wall
b) Polished metal
c) Paper
d) Cloth
Answer: b) Polished metal
What is the angle of incidence equal to in reflection?
a) 90°
b) Angle of reflection
c) 0°
d) Angle of deviation
Answer: b) Angle of reflection
In the laws of reflection, the incident ray, normal, and reflected ray lie in the:
a) Same line
b) Different directions
c) Same plane
d) Opposite planes
Answer: c) Same plane
What is the phenomenon where light bounces back into the same medium after striking a surface?
a) Refraction
b) Reflection
c) Dispersion
d) Diffraction
Answer: b) Reflection