Question

Choose the correct option: (a) Each colour of light travels with the same speeds in a given medium (b) Each colour of light travels with different speeds in a given medium (c)Only red colour of light travels with fast in a given medium (d) All of the above


plss answer​

Answer 1

Answer:

please tick answer c it will be right

Answer 2

Answer: The correct option is each color of light travels with the same speed in a given medium option(a).

Explanation: Air is considered as a nondispersive medium and hence the light of all wavelength travel with equal velocity.

Dispersion is defined when different color of light experienced varying in degree of refraction. Dispersive medium is stated as the phenomenon when different wave with different frequency travel dissimilar velocities.

Example: Sound waves in air is not dispersive but water is a dispersive medium.

Different color irrespective to their length and intensity may travel with the same speed in the vacuum and travel in different speed in refracting medium. Example: In refracting medium violet light is slower than red light.

To know more about dispersive and nondispersive medium click here

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To know more about dispersion click here

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