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    Subject
    Physics

    Class

    ICSE Class 12

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    Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

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    ISC Class 12 Physics Solved Question Paper 2010

    Multiple Choice QuestionsShort Answer Type

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    11. Which electromagnetic wave is longer than X-ray but shorter than light wave?

    Ultraviolet waves are the electromagnetic wave which are longer than X-ray but shorter than light wave. 
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    12. Calculate the critical angle for glass and water pair.
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    13. Name an optical device, which when used with a spectrometer, can determine the wavelength of the given monochromatic light.
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    14.
    Young’s double slit experiment was performed with monochromatic light of blue colour. The experiment was then repeated, first with light of red colour and then with light of yellow colour. Which colour produces interference pattern with maximum fringe separation (i.e., fringe width)?
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    15.

    Calculate dispersive power of glass, accurately up to decimal places, from the following data:    

    Refractive index of glass for red colour = 1.60

    Refractive index of glass for yellow colour =1.61

    Refractive index of glass for violet colour = 1.62

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    16. De Broglie wavelength of electrons of kinetic energy E is λ. What will be its value if kinetic energy of electrons is made 4E?
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    17. How much energy will be created if 1 g of matter is destroyed completely?
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    18. Complete the following nuclear reaction:

    straight n presubscript 0 presuperscript 1 space plus space straight C presubscript 6 presuperscript 12 space rightwards arrow space straight B presubscript 5 presuperscript 11 + ......
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    19. State one important use of a Zener diode.
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    20. Draw a labelled graph of voltage versus time for a signal voltage used in digital circuits.
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