we need light to see we don't we will not be able to see thing around us
Yes.
because if their are no light to our word the word became dark
Fire starting, light reflection, and they are very useful for vain people. lol Reflection of light.
it's useful for light and safety.
The light bulb is useful because it lights up places!
seasonal affective disorder.
The useful energy that comes out of a light bulb is primarily in the form of light and heat. The electrical energy is converted into light energy that illuminates the surroundings and heat energy that warms up the light bulb and its surroundings.
Useful: Energy Light Sound Non-Useful: Electricity C02
The useful energy in a light bulb is the light that it emits. When electricity flows through the filament of a light bulb, it produces light energy that we can see and use for illumination.
red and blue light is most useful. But others are not.
A light bulb emits light energy, which is useful for illuminating a space and providing visibility. Some light bulbs also produce heat energy, although this is often considered a byproduct rather than a primary source of useful energy.
The useful energy of a light bulb is the light it emits, which is used for illumination. This is the intended function of the light bulb, as it allows us to see and perform tasks in dark environments.