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If size of aperture is decreased,...

If size of aperture is decreased,

A

intensity of image is decreased

B

no effect on the formation of image

C

any of the above

D

none of the above

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. To increse magnifying power of telescope,we sould increase:

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  2. A telescope has focal elngth of objective and eyepiece as 200 cm and 5...

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  3. If size of aperture is decreased,

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  4. The objective with large aperture are used in telescope for

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  5. If in Rmsden's eyepiece,the field lenses have focal lengths f1 and f2 ...

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  6. Huygens' wave theory allows us to know:

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  7. Which of the following does not support the wave nature of light?

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  8. Huygen's wave theory of light could not explain

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  9. Hiygens' concept of secondary waves

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  10. In the ineterference pattern,the energy is

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  11. Two waves of the same equency and intenisty superimpose with each othe...

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  12. Two waves,whose inensitites re 9:16 are made to inrterefere.The ratio ...

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  13. Two waves have intenstities in the ratio of 1:9.If these waves produce...

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  14. When ligh wave suffers reflection at the interface between air and gla...

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  15. Two sources of light of wavelenghs 2.500 overset @A and 3,500 overst @...

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  16. In Yound's double slit experiment,wer get 15 fringes per cm on the scr...

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  17. If white light is used in the Newton's ring s experiment ,the color ob...

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  18. Why does the colour of the oil fim on the surface of water continously...

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  19. Bending of light into regoins of geometrical shadow is called:

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  20. The width of the difraction band varies

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