Question

3)

Match the pair.

Column "A"


i. Refractive index


ii. Absolute refractive Index
Column "B"



a.

Sin

i

Sin

r


b. With respect to vacuum

c. Change in direction of light

d. Mirage​

Answer 1

Answer:

1)refractive index = change in direction of light.

2) Absolute refractive index= sin

Answer 2

Answer:

i) Refractive index - change in direction of light.

ii)Absolute refractive index: concerning vacuum.  

Explanation:

i) Refractive index: The refractive index, commonly known as the index of refraction, is a measurement of how much a ray of light bends when it passes through one medium and into another.

• Refractive index is also known as refraction index or refraction index.
• The qualities of media influence the speed of light in that medium.
• The speed of electromagnetic waves is determined by the optical density of the medium.
• The tendency of atoms in a substance to recover absorbed electromagnetic energy is known as optical density.
• The slower the speed of light is, the more optically dense the substance is.
• The refractive index is one such measure of a medium's optical density.

ii) Absolute refractive index: The absolute refractive index is the ratio of the speed of light in a vacuum to the speed of light in the medium. The absolute refractive index must always be greater than one.

Hence, the refractive index is the change in direction of light and the absolute refractive index is with respect to vacuum.

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