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A rectangulat block of refractive index ...

A rectangulat block of refractive index `mu` is placed on a printed page lying on a horizontal surface as shown in Fig. , Find the minimum value of `mu` so that the letter L on the page is not visible from any of the vertical sides.

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`mu gt sqrt(2)`
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AAKASH SERIES-RAY OPTICS-PROBLEMS ( LEVEL-II)
  1. A convex glass lens ( mu = 1.5 ) produces a real image of an object. ...

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  2. Two plano-convex lens of glass of refractive index 1.5 have radii of c...

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  3. A rectangulat block of refractive index mu is placed on a printed page...

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  4. A ray is incident on prism at an angle i with normal. When it comes ou...

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  5. The dispersive power of crown and flint glasses are 0.02 and 0.04 resp...

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  6. Two prisms of identical geometrical shape are combined with their refr...

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  7. A thin prism of crown glass (mur=1.515, muv=1.525) and a thin prism o...

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  8. Two small angled prisms A and B deviate the blue rays by 7^@ and 9^@ a...

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  9. A beam of light converges towards a point O, behind a convex mirror of...

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  10. When an object is placed at a distance of 25 cm from a mirror, the mag...

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  11. An object is placed between a plane mirror and a convex mirror as show...

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  12. A plane mirror and a concave mirror are arranged as shown in figure an...

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  13. Describe the image in convex mirror, of the image of rod PQ in the pla...

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  14. The u-v curve in a concave mirror as shown in figure. Find the f...

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  15. An illuminated point object O is kept 20 cm from a thin convex lens L(...

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  16. A thief is running away in a car with velocity of 20 m/s . A police je...

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  17. One face of a rectangular glass plate of 8 cm thickness is silvered. A...

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  18. The bottom of water tank is lined with a plane mirror.A particle is pr...

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  19. In figure a point source S is placed at a height h above the plane mir...

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  20. In figure a point source S is placed at a height h above the plane mir...

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