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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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The situation is depicted in figure . Light will not energy out from
the vertical face BC if at it
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MOTION-RAY OPTICS-Exercise-4
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  2. Assertion : Refractive index of material of a prism depends on angle o...

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  3. Assertion : Two convex lenses joined together cannot produce an achrom...

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  4. Assertion : When the object moves with a velocity vec(v ) , its i...

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  5. Assertion : As the temperature of a medium increases the refractive in...

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  6. Assertion : Critical angle is minimum for violet colour Reason : Be...

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  7. Assertion : If the angle between the two plane mirror is 72^(@)and the...

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  8. Assertion : For given system ( theta = 72^(@)), number of images forme...

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  9. Assertion : The power of a converging lens is positive and that of a d...

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  10. Assertion :– For a plane mirror the focal length is infinite and magni...

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  11. Assertion :– As light travels from one medium to another, the speed of...

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  12. Assertion : In a concave mirror if X and Y are the distance of ...

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  13. Assertion : A star will appear to twink le if seen from free spa...

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  14. Assertion : A beam of white light when passed through a hollow ...

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  15. Assertion :- The twinkling of stars is due to the fact that refractive...

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  16. Assertion :- Critical angle is maximum for red colour in water-air sy...

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  17. Assertion :- The minimum distance between a real object and its real i...

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  18. Assertion :- Chromatic aberration occur in simple lenses but not in mi...

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  19. Assertion : In a compound microscope, the intermediate image is real, ...

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  20. Assertion :- 11 english alphabets donot show lateral inversion. Rea...

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