Interested to Buy Any Domain ? << Click Here >> for more details...
how sunlight produce e.m wave in vacuum?
- 4 Answers
- 6195 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / thiru
in fiber optic communication we use a optical source for
generating optical energy like light for
communication.similar way we consider the sunlight has
optical energy and vacuum has a fiber core.now the light
travel in a vaccum and gets all properties of the em wave.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / bob
It seems odd that light can move in a vacuum (propagate).
This was a big question before Einstein's theory of
relativity. It was thought that space was composed of
"aether," a substance that essentially allows light to
travel through it. If this were true, though, the travel of
the earth through space would change the speed of light
depending on which direction you beamed a light source. This
was proven incorrect through the Michelson-Morley experiment
which showed that even though the earth is speeding through
this 'aether,' its speed never changes. Somehow the
electromagnetic wave that is light propagates itself. It
does not need a medium to carry it, so to speak. Thus a
light beam needs no medium in which to travel.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / vens
light does not produces s em wave in vacuum.because em wave
consist of electrical and magnetic waves.so light does does
not contain these component and instead of producing em
wave it takes all properties of em wave like
dispersion,scattering,attunation etc,,,,,,
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / gokche
Speed of light in vacuum c = 2.997 924 580 e8 m/s
| Is This Answer Correct ? | 0 Yes | 1 No |
Why in cold countries, the water at the surface freezes and in the inner portion it is in the sate of water ?
WHO IS THE FATHER OF CALCULUS,LIBNIEZ OR NEWTON?
I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.
what is momentum?
What is ultrasonic sound?
Describe the Infra-red and Ultra-voilet rays?
When is fluorescence strong?
Why is it easy to turn over a leaf with a wet finger ?
Why mercury rises in a barometer ?
Name the element which has the simplest absorption spectrum?
Explain the steps to the scientific notation?
Is exothermic reaction useful in Lasing process? give reasion of ur answere?
General Physics 
