the existence of released energy
Humans are able to detect pulsars when one of their beams crosses paths with the Earth. When this happens, we are able to detect the resulting electromagnetic radiation in the radar spectrum.
How do you proof of the existence of back emf ?
No. Any person trained in logic will tell you that 'you cannot prove a negative'. If you want to disprove the existence of fairies you first attempt to try and prove their existence. And the best you can do is to fail to prove it. The option to prove it always exists.
Lippershey first discovered a dark-line spectrum.
Line Spectrum
No, its an absorption spectrum
No. But then can you prove that you do?
No. Spirituality is essentially the belief in a spiritual existence, which may or may not include magic. Even if it does, belief in something does not prove its existence.
Nobody knows who created the visible spectrum but newton was the first to actually prove that light was made up of all the colours in the visible spectrum
Dark lines especially in solar spectrum have been named as Fraunhofer lines. These line are good examples for line absorption spectrum
dark-line spectrum...
atom give line spectrum because it is sharukh khan and molecule is salman khan that is why it give continiuos spectrum