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Fraunhofer spectrum is a...

Fraunhofer spectrum is a

A

line absorption spectrum

B

band absorption spectrum

C

line emmission spectrum

D

band emission spectrum

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. What is the cause of formation of a rainbow?

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

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  3. Fraunhofer spectrum is a

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

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  5. In case of lens,which of the following quantities depend on the wavele...

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  6. A converging achromat lens is to be made by placeing two lenese in con...

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  7. A combination is made of two lenses of focal lengths f and f' and disp...

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  8. When we see an object,the image formed on the retina is

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  9. The focal length of the normal eye-lens is approximaterly

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  10. The distances of the human eye-lens from the retina is x.For a normal ...

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  11. Why is a normal eye not able to see clearly the objects placed closer ...

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  12. When we view objects lying at differnt distances from the eye,which fo...

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  13. Draw a ray diagram to show the image formation by a simple microscope....

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  14. If the least distance of distinct vision is 25 cm,then a convex lens o...

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  15. The convex lenses of focal lengths 0.3 m and 0.05 m are used to make a...

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  16. An observer looks at a tree of height 15 m with a telescope of magnify...

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  17. Magnifying power of a telescope is m.If the focal length of the eye-pi...

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  18. A fly is sitting on the objective of a telescope pointed to the moon.W...

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  19. A telescpe is focussed on the moon.If a tiny drop of ink falls on its ...

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  20. For observing a cricket match,binocular is prefferred to tererestrial ...

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