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charle [14.2K]
2 years ago
11

Is the formula for velocity the same as speed or different?

Physics
1 answer:
a_sh-v [17]2 years ago
5 0

Answer:

always same

Explanation:

velocity and speed are same upto some extend but velocity is vector while speed is scalar quantity

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1)

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In this problem, light propagates faster through medium "a" than medium "b": this means that medium "a" has lower refractive index of medium "b", and so "b" has more optical density.

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We can answer this part by referring to Snell's law, which gives the relationship between the direction of the incident ray and of the refracted ray when light passes through the interface between two media:

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Here we want the direction of propagation of the light ray not to change: this means that it must be

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Learn more about refraction:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

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