If in space there is vacuum and sound waves can't travel there than how light waves travel in space / in vacuum if waves need a medium to travel ?
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While traveling in space the light being an electro magnetic wave creates a magnetic and electric field in its vicinity, these fields are mutually perpendicular to each other.
Light is essentially an electro magnetic ray it does not require a particular medium to travel so even if it is vaccum propagation of light is not a problem. It travels in the form of crest and trough .
Light is essentially an electro magnetic ray it does not require a particular medium to travel so even if it is vaccum propagation of light is not a problem. It travels in the form of crest and trough .
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Waves
Hay if you think that all waves need medium then it is your misconception.
All waves don't need medium especially transverse waves.
Waves are of two types (1) longitudinal wave and (2) Transverse wave.
(1) Longitudinal waves need medium because these are just the to and fro motion of the medium. i.e. sound is a longitudinal wave. As the source of sound vibrates makes contraction and refraction in the air. Thus producing sound. And now it is obvious if there is no medium then form where these contraction and refraction will occur !
(2) Transverse waves are the waves that oscillation perpendicular to the direction of motion. These dosn't require any medium.i.e. light is a Transverse wave more accurately electromagnetic wave. Its oscillations are perpendicular to the direction of motion. They are self sufficient they don't need any medium. So they can move through without any medium i.e. in the vacuum.
Additional: Longitudinal waves require a medium and for this reason there waves are also called mechanical waves. Transverse waves don't require a medium thus called non-mechanical waves.
Also the direction of oscillation in case of longitudinal waves is in the direction of motion and in case of transverse waves it is perpendicular to the direction of motion.
That's it
Hope it helped (ㆁωㆁ*)
Hay if you think that all waves need medium then it is your misconception.
All waves don't need medium especially transverse waves.
Waves are of two types (1) longitudinal wave and (2) Transverse wave.
(1) Longitudinal waves need medium because these are just the to and fro motion of the medium. i.e. sound is a longitudinal wave. As the source of sound vibrates makes contraction and refraction in the air. Thus producing sound. And now it is obvious if there is no medium then form where these contraction and refraction will occur !
(2) Transverse waves are the waves that oscillation perpendicular to the direction of motion. These dosn't require any medium.i.e. light is a Transverse wave more accurately electromagnetic wave. Its oscillations are perpendicular to the direction of motion. They are self sufficient they don't need any medium. So they can move through without any medium i.e. in the vacuum.
Additional: Longitudinal waves require a medium and for this reason there waves are also called mechanical waves. Transverse waves don't require a medium thus called non-mechanical waves.
Also the direction of oscillation in case of longitudinal waves is in the direction of motion and in case of transverse waves it is perpendicular to the direction of motion.
That's it
Hope it helped (ㆁωㆁ*)
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