In Young’s double slit experiment, if white light is used in l
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    Physics

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    ICSE Class 12

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    ISC Class 12 Physics Solved Question Paper 2004

    Multiple Choice QuestionsShort Answer Type

    11. Find the refractive index of the liquid if a ray of light strikes surface AB normally and then comes out from face AC at grazing emergence.[aμg = 3/2]
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    12. Define the angular magnification of an optical instrument.
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    13. In Young’s double slit experiment, if white light is used in lieu of monochromatic light, what changes are observed in the interference pattern ?

    In interference pattern, coloured fringes are obtained when multichromatic light is used.
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    14. The refractive index of glass with respect to air is 3/2. Find the angle of polarisation.
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    15. What is meant by remote sensing ?
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    16. An electron is accelerated under a potential difference of 150 volts. What is De broglie’s wavelength ?
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    17. How can the work function of tungsten be increased ?
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    18. What are Fraunhoffer’s Lines ?
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    19. What is the role of control rods in a Nuclear Reactor ?
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    20. Draw the symbol for NAND GATE.
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    NCERT Solutions
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