Physics: Refractive Index and Light Rays

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Questions and Answers

What physical quantity can refractive index be linked to?

Pressure
Density
Temperature
Speed of light (correct)

In which medium does light travel fastest?

Vacuum (correct)
Glass
Water
Air

How is the refractive index defined in terms of the speed of light in different media?

$\frac{v_1}{v_2}$ (correct)
$\frac{v_2}{v_1}$
$v_1 - v_2$
$v_1 + v_2$

Which medium has a refractive index closer to that of vacuum?

Air (D)

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What does the refractive index ratio symbol n21 represent?

Refractive index of medium 2 with respect to medium 1 (C)

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What would happen to the refractive index if the speed of light in medium 2 decreased?

It would increase (B)

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How is the ability of a medium to refract light expressed?

Refractive index (A)

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What does optical density refer to?

Ability to refract light (D)

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In which type of medium does light travel faster?

Rarer medium (C)

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What is the relationship between refractive index and optical density?

Directly proportional (A)

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Which type of medium bends light towards the normal?

Optically denser medium (C)

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What property distinguishes an optically denser medium?

Larger refractive index (D)

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What is the equation for the refractive index of medium 1 with respect to medium 2?

n21 = v1/v2 (A)

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What does the absolute refractive index of a medium represent?

The ratio of the speed of light in air to the speed of light in the medium (B)

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What is the refractive index of water based on the information provided?

1.33 (A)

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How is the refractive index of medium nm defined?

nm = c/v (A)

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Which equation represents the refractive index of medium 2 with respect to vacuum?

$n_2 = v/c$ (A)

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What does the refractive index of crown glass represent?

$n_g = 1.52$ (D)

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Flashcards

Refractive Index Link

The speed of light.

Fastest Light Travel

Vacuum.