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Mirror in the arrangement shown in figur...

Mirror in the arrangement shown in figure is moving up with speed `8 cm//sec`. There is an object `O` outside water. Speed of final image formed after two refraction and one refraction and the reflection is :
.

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The correct Answer is:
6

N//a
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RESONANCE ENGLISH-GEOMATRICAL OPTICS -Exercise-2
  1. The x-y plane is the boundary between two transparent media. Medium-1 ...

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  2. (a) In the figure shown a slab of refractive index (3)/(2) is moved to...

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  3. Mirror in the arrangement shown in figure is moving up with speed 8 cm...

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  4. A point object is placed on principal axis of a concave mirror of radi...

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  5. Light is incident from glass to are. The variation of the angle of dev...

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  6. A hemispherical portion of the surface of a solid glass sphere (mu = 1...

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  7. In the figure, a point object O is placed in air. A spherical boundry ...

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  8. A glass hemispher of refractive index 4//3 and of radius 4 cm is place...

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  9. A converging lens of focal length 15 cm and a converging mirror of foc...

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  10. An object of height h(0)=1 cm is moved along principal axis of a conve...

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  11. Object O is kept in air in fron of a thin plano convex lens of radius ...

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  12. A symmetrical converging convex lens of focal length 10 cm & diverging...

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  13. An object O is kept in air and a lens of focal length 10 cm (in air) i...

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  14. A stationary observer O looking at a fish (in water of mu=4//3 ) throu...

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  15. The dispersive power of the material of a lens is 0.04 and the focal l...

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  16. The image formed by a concave mirror is twice the size of the object. ...

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  17. Which of the following statements are incorrect for spherical mirror.

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  18. A ray of monochromatic light is incident on the plane surface of separ...

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  19. For refractin of light through a prism

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  20. An equilateral prism deviates a ray through 45^(@) for the two angles ...

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