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When light rays enter the eye, most of t...

When light rays enter the eye, most of the refraction occurs at the

A

crystalline lens

B

outer surfact of the cornea

C

iris

D

pupil

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Light entering the eye is mostly refracted by:

Light entering the eye is mostly refracted by:

The refractig angle of a prism is A and the refractive index of its material is mu .When a ray of light is incident on the face AB of the prism,after refraction through the prism,the ray of light just grazes along the face AC as shown in Fig.3.21. Determine the value of the angle of incidence in terms of A and mu .

A ray of light is sent along the line 2x-3y=5. After refracting across the line x+y=1 it enters the opposite side after torning by 15^0 away from the line x+y=1 . Find the equation of the line along which the refracted ray travels.

The refrating angle of a prism is 40^@ and the refractive index of its material is given by mu=1.25 + b/(delta^2) When a ray of light is incident normally on the face AB of the prism,after refraction through the prism,the ray of light just grazes along the face AC as shown in Fig.3.20. If the wavelength of the incident light is 440 nm,find the value of b.

What is refraction of light?

MODERN PUBLICATION-THE HUMAN EYE AND THE COLOURFUL WORLD-EXERCISE
  1. The sun appears red at sun rise or sunset, why?

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  2. The water in deeper sections of sea/ocean is much colder than that at ...

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  3. When light rays enter the eye, most of the refraction occurs at the

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  4. Ciliary muslces can change the focal length of eye lens. This phenomen...

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  5. Which of the following statements is correct?

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  6. The colour of sky as seen from the moon, where there is no atmosphere,...

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  7. A dichromatic light of wavelength 5600 oversetcircA and 6300 oversetci...

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  8. Amount of light entering into the camera depends upon:

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  9. The far point of myopic person is 75 cm in front of the eye. The natur...

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  10. What is meant by power of accomodation of the eye?

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  11. The SI unit of power is

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  12. Myopia is corrected by

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  13. Two lenses have powre -3D and +1D respectively are put together. The p...

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  14. The fluid present between eye lens and retina is called

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  15. The wavelength of violet coloured light is

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  16. Which colour is at the lower end of the visible spectrum which is form...

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  17. Cataract is correct by

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  18. Name the pehnomenon responsible for advanced sunrise and delayed sun-s...

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  19. True or false The human eye lens is concave?

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  20. True or false The far point of human eye to 25 cm.

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