Question

In: Physics

U22P1 In the reflection and refraction lab a beam of white light is passed through a...

U22P1 In the reflection and refraction lab a beam of white light is passed through a prism at an angle of 30 and separated into a spectrum. The red portion of the spectrum is measured to be at an angle of 52 and the blue at 55 . What is the index of refraction for each color?

nred = ________

nblue = _______ What is the velocity of the blue light as it passes through the prism.

vblue prism = ___________

Expert Solution

Taking Snell's Law , the statement indicates that the product of the refractive index of the first medium by the angle of incidence equals the refractive index of the second half by the angle of refraction .

Where:

n is the refractive index .

It is the angle of incidence

It is the angle of refraction

Refractive index of blue

They assume that the initial medium is air being the most common .

The refractive index in the air is 1.00029 , but is assumed to be equal to unity because the speed of light in air is practically the same as in vacuum.

Refractive index of red.

velocity of the blue light as it passes through the prism

The refractive index is equal to:

Where:
n is the refractive index .
c is the speed of light in vacuum
v it is the speed of light in the medium whose index is calculated.

You need to calculate the speed of blue through the prism , the refractive index of the glass that turns out to be 1.52 is needed.

genius_generous answered 1 year ago

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