Physics, asked by bholetripathy03, 4 months ago

why is the light emitted by an ordinary electric bulb are incoherent?

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Answered by Anonymous

1

Answer:

An ordinary bulb is an incandescent source, which by its nature is emitting light over a very broad range of visible wavelengths and with an essentially continuous emission spectrum.
More modern LED light bulbs still don’t provide coherent light, as they combine a narrow-band blue LED source with a fairly broad yellow phosphor.

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