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Define critical angle....

Define critical angle.

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When light travels from a denser medium to rarer medium, the angle of incidence for which the angle of refraction becomes `90^(@)` , is called the critical angle.
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-LAWS, RULES, UNITS AND DEFINITIONS -Refraction of Light
  1. State laws of refraction of light.

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  2. Define the refraction index of the second medium with respect to the f...

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  3. Define absolute refraction index.

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  4. What do you mean by dispersion of light ?

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  5. What is a spectrum of light ?

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  6. Name the different colours of light in the proper sequence in the spe...

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  7. What is partial reflection of light ?

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  8. Define total internal reflection of light.

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  9. Define critical angle.

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  10. Define the following terms in the context of spherical mirrors : (...

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  11. State the rules used for drawing ray diagrams for the fomation of an i...

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  12. State the rules used fro drawing ray diagrams for the formation of an ...

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  13. What are the Cartesian sign convention for refraction of light (image ...

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  14. What is a lens formula ? State it.

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  15. What is meant by the magnification produced by a lens State the formul...

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  16. What is the power of a lens ?

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  17. What is the unit of power of a lens ? Define it .

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  18. What is meant by the power of accommodation of the eye ?

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  19. What is meant by the minimum distance of distinct vision ?

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  20. What is persistence of vision ? Give one example of persistence of vi...

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