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Define the term refractive index of a me...

Define the term refractive index of a medium in terms of speed of light.

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Refractive index of a medium is defined as the ratio of speed of light in vacuum to the speed of light in the medium. i.e.
Refractive index (of a medium) `=("Speed of light in vacuum")/("Speed of light in medium")`
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VK GLOBAL PUBLICATION-LIGHT-REFLECTION AND REFRACTION-VERY SHORT ANSEWR QUESTIONS
  1. Define the term angle of incidence.

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  2. Define the term angle of refraction.

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  3. Define the term refractive index of a medium in terms of speed of ligh...

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  4. What is absolute refractive index?

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  5. What is relative refractive index?

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  6. What is the unit of refractive index?

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  7. Refractive index of two material mediums X and Y are 1.3 and 1.5 respe...

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  8. What is the cause of refraction of light?

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  9. What is the relationship between the refractive index of two media?

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  10. In which direction a ray of light bends when it goes from water to gla...

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  11. If refractive indices of water and alcohol are 1.33 and 1.36 respectiv...

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  12. If a light ray IM is incident on the surface AB as shown, identify the...

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  13. Why does a ray of light bend when it travels from one medium into anot...

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  14. What is a lens?

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  15. Name a point inside a lens such that a ray of light passing through it...

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  16. Name the phenomena on which the working of a lens is based.

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  17. State two examples of phenomenon of refraction of light in everyday li...

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  18. What is meant by power of a lens?

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  19. Give the SI unit of power of lens. State whether the power of a conver...

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  20. Aspherical mirror and a lens have same focal length of - 20 cm. What t...

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