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A thin slice is cut out of a glass cylin...

A thin slice is cut out of a glass cylinder along a plane parallel to its axis. The slice is placed on a flat glass plate with the curved surface downwards. Monochromatic light is incident normally from the top. The observed interference fringes from the combination do not follow on of the following statements.

A

The fringes are straight and parallel to the length of the plece.

B

The line of contact of the cylindrical glass pice and the glass plate appears dark.

C

the fringe spacing increases as we go outwards.

D

The fringes are formed due to the interference of light rays reflected from the curved surface of the cylindrical piece and te top surface of the glass plate.

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The correct Answer is:
C
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ALLEN-WAVE OPTICS-Exercise 2 (Brain Teasures)
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  2. In figure, if a parallel beam of white light is incident on the plane ...

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  4. M(1) and M(2) are plane mirrors and kept parallel to each other. At po...

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  5. If the first minima in Young's double-slit experiment occurs directly ...

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  6. In Young's double slit experiment, slits are arranged in such a way th...

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  7. If one of the slit of a standard Young's double slit experiment is cov...

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  8. White light is used to illuminate the two slits in a Young's double sl...

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  9. In an interference arrangement similar to young's double slit experime...

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  10. plane waves refracted for air to water using Huygen.s principal a,b,c,...

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  11. A monochromatic light source of wavelength lamda is placed at S. three...

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  12. In a young's double slit experiment, green light is incident on the tw...

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  13. Two monochromatic (wavelength =a//5) and coherent sources of electroma...

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  14. In Young's double-slit experment, the frist maxima is observed at a fi...

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  15. To make the central fringe at the centerO , mica sheet of refractive i...

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  16. A thin slice is cut out of a glass cylinder along a plane parallel to ...

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  17. A circular planar wire loop is dipped in a soap solution and after tak...

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  18. Soap bubble appears coloured due to the phenomenon of

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  19. A parallel coherent beam of light falls on fresnel biprism of biprism ...

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  20. In an arrangement to view the interference pattern produced by a wedge...

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