Question

differentiate between light,sound and visual appliances

Answer 1

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➢There are three basic types of lighting that work together to light your home: General, Task and Accent. A good lighting plan combines all three types to light an area, according to function and style. General Lighting provides an area with overall illumination.

Answer 2

Light :

Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometers, or 4.00 × 10⁻⁷ to 7.00 × 10⁻⁷ m, between the infrared and the ultraviolet.

Sound :

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the .

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