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A fish is rising up vertically inside a ...

A fish is rising up vertically inside a pond with velocity 4 cm/s and notices a bird, which is diving vertically downward and its velocity apperars to be `16 cm//s` (to the fish) . What is the real velocity of the diving bird, If refractive index of water is 4/3

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The correct Answer is:
`9 cm//s`
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A fish is rising up vertically inside a pond with velocity of 4cm//s , and notices a bird , which is diving vertically downward and its velocity appears to be 16cm//s (to th fish). What is the real velocity of the diving bird, if refractive index of water is 4//3 ?

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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
  1. In the given figure an abserve in air (n=1) sees the botoom of a bre...

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  2. In the given figure rasy incident on an interface would converge 10c...

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  3. A fish is rising up vertically inside a pond with velocity 4 cm/s and ...

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  4. Find the apparednt distance between the observer and the object shwon ...

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  5. Find the apparent depth of object of the object seen by observe A (in...

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  6. Locate the image fo the point P as seen by the eye in the figure.

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  7. A small object is placed at the centre of the bottom of a cylindrical ...

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  8. A point source is placed at a depth h below the surface of water (re...

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  9. Light falls from glass (mu=1.5) to air. Find the angle of incidence fo...

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  10. At what values fo the refractive index of a recantangular prism can...

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  11. A prism (n = 2) of apex angle 90^(@) is palced in air (n = 1). What ...

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  12. The refracting angle of a glass prism is 30^@. A ray is incident onto ...

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  13. Find the angle of devaition suffered by the light ray shown in figu...

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  14. The refractive index of a prism is mu. Find the maximum angle of the ...

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  15. An extended object of size 2cm is placed at a distance of 10cm in air...

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  16. A point object lies inside a transpatent solid sphere of radius 20cm ...

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  17. An object is placed 10cm away form a glass piecwe (n = 1.5) of length...

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  18. There is small air bubble inside a glass sphere (mu = 1.5) of radius ...

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  19. A smell object Q of length Q of length 1mm leis along the principle ...

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  20. A narror parallel beam of light is incident paraxially on a solid tr...

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