Incandescent light bulbs emit thermal radiation because their filaments are heated to about 2500 kelvin. led light bulbs emit only at particular visible wavelengths. why do incandescent bulbs require more energy to shine with the same amount of visible light as led bulbs?

LED ligths produce less heat and more ligth.

Explanation:

Incandescent bulbs transform 88%  of their energy in form of heat, but not in ligth, however LED ligth bulbs transform 88% of their energy in visible ligth (in particular visible wavelengths), so they are more eficcients.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

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