Question

what is law of illumination ☺️❣️ . explain briefly​

Answer 1

Answer:

The law states that Illuminance at a point on a plane is proportional to the cosine of the angle of light incident (the angle between the direction of the incident light and the normal to the plane). ... The maximum Illuminance occurs when the element of area receives the light flux normal to its surface.

Answer 2

The law states that the illumination of a surface by a light ray varies as the cosine of the angle of incidence between the normal to the surface and the incident ray......✍️✍️

hope it helpful to you..!!✌️❣️✌️