GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
i = r is a law of
A
Refraction
B
Reflection
C
Absorption
D
Transmission
Explanation: 

Detailed explanation-1: -The law of reflection states that the angle of reflection equals the angle of incidence-r = i. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.

Detailed explanation-2: -Laws of reflection are: (i) The incident ray, the reflected ray and the normal ray at the point of incidence, lie in the same plane. (ii) The angle of incidence is equal to the angle of reflection.

Detailed explanation-3: -What Is Law of Reflection? Definition: The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.

Detailed explanation-4: -According to the first law of reflection when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

Detailed explanation-5: -The angle between the incident ray and the normal is equal to the angle between the reflected ray and the normal. The incident ray, the normal and the reflected ray are all in the same plane. Incident ray and refracted ray are on different sides of the normal.

There is 1 question to complete.