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The spherical abberation in a lens may b...

The spherical abberation in a lens may be inimised by designing of the lens,so that the deviation of rays is

A

minimum

B

minimum at first surface

C

minimum at second surface

D

equal at both surfaces.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A beam of parallel rays is brought to focus by a plano-convex lens.A ...

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  2. Large aperture of lens results in

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  3. The spherical abberation in a lens may be inimised by designing of th...

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  4. A glass prism placed in a homogeneous transparent medium will deivatie...

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  5. Angle of minimum deviation for a prism of refractive index 1.5 is equa...

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  6. Yellow light is refracted through a prism producing minimum deviation ...

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  7. The figures represent three cases of ray passing through a prism of re...

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  8. The refracting angle of a prism is A and the refractive index of its m...

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  9. A prism splits a beam of white ligth into its seven constituent colour...

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  10. A narrow beam fo white ligth passes throuugh a glass slab havig paral...

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  11. Refractive indices of a prism material for two wavelengths are 1.66 an...

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  12. When a glass prism is placed inside water,its dispersive power

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  13. During dispersion of white light by prism placed in air,

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  14. The figure shows the view through the eye-piece of a prism spectromete...

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  15. One cannot see through fog, because:

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  16. The sky would appear red instead of blue,if

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  17. What is the cause of formation of a rainbow?

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  18. Which fo the following statement is correct? (i)Line spectra is chrara...

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  19. Fraunhofer spectrum is a

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  20. In which one of the following regions of teh electromagnetic spectrm w...

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