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One cannot see through fog, because:...

One cannot see through fog, because:

A

fog absorbs the light.

B

the refractive index of fog is infinity

C

light suffers total internal reflection at the droplet in fog

D

light is scattered by the droplets in fog

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. During dispersion of white light by prism placed in air,

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

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  3. One cannot see through fog, because:

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

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

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

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  7. Fraunhofer spectrum is a

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

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

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

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

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

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

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

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

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

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

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

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

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

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