It is given that white light has its components- when light travels in vacuum nbsp-its component light rays have same speed and so they do not show dispersion of light in vacuum- Now light when travels from sun through the space -which is vacuum- on the earth- nbsp-it does not get dispersed - so my question is- nbsp-when sunlight travels from space which is vacuum nbsp-to earth which is not a vacuum - then why its light does not get dispersed after reaching the earth- nbsp-

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Standard X

Physics

Absolute and Relative Refractive Index

it is given t...

Question

it is given that white light has its components; when light travels in vacuum its component light rays have same speed and so they do not show dispersion of light in vacuum. Now light when travels from sun through the space (which is vacuum) on the earth, it does not get dispersed , so my question is, when sunlight travels from space which is vacuum to earth which is not a vacuum , then why its light does not get dispersed after reaching the earth?

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Solution

$F o r l i g h t t o g e t d i s p e r s e d n e e d s s o m e t r a n s p a r e n t p r i s m a t i c m e d i u m . W h e n t h i s c o n d i t i o n i s f u l f i l l e d e v e n o n t h e s u r f a c e o f t h e e a r t h d i s p e r s i o n o f l i g h t i s o b s e r v e d .$

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Similar questions

We know that light can travel through a vacuum. But are we able to see light when it travels through a vacuum? If not then what is it that makes stars visible in space(which is a vacuum)?

Q. We know that light travels does not rerequir a midium but travels through vacuum. How does light travels in vacuum or in space which hasn't have even air

The correct statement is :

(a) Sound and light both require medium for propagation

(b) Sound can travel in vacuum, but light can not

(d) Sound and light both can travel in vacuum.

Q. Which of the following does not disperse the white light into its components?

Q. Assertion :Sound waves do not travels through vacuum. Reason: The speed of sound is too small when compared to speed of light.

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For light to get dispersed needs some transparent prismatic medium.When this condition is fulfilled even on the surface of the earth dispersion of light is observed.

$F o r l i g h t t o g e t d i s p e r s e d n e e d s s o m e t r a n s p a r e n t p r i s m a t i c m e d i u m . W h e n t h i s c o n d i t i o n i s f u l f i l l e d e v e n o n t h e s u r f a c e o f t h e e a r t h d i s p e r s i o n o f l i g h t i s o b s e r v e d .$