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Physics Test - ...

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  • Question 1
    3 / -1

    Which of the following is used for making the filaments of electric bulbs?

  • Question 2
    3 / -1

    The expression for exclusive NOR gate is

  • Question 3
    3 / -1

    Assuming the sun to have a spherical outer surface of radius r, radiating like a black body at temperature toC, the power received by a unit surface, (normal to the incident rays) at a distance R from the centre of the sun is

  • Question 4
    3 / -1

    The binary representation of hexadecimal number C3 is

  • Question 5
    3 / -1

    A body thrown vertically upwards reaches a height and comes back. Which of the following is true about the acceleration due to gravity?

  • Question 6
    3 / -1

    The graph of input characteristics of common emitter amplifier is

  • Question 7
    3 / -1

  • Question 8
    3 / -1

  • Question 9
    3 / -1

    A transistor is used as an amplifier in CB mode with a load resistance of 5 kW. The current gain of the amplifier is 0.98 and the input resistance is 70 W. The voltage gain and power gain respectively, are

  • Question 10
    3 / -1

    A river is flowing from West to East with a speed of 5 m/min. A man can swim in still water with a velocity of 10 m/min. In which direction should the man swim, so as to take the shortest possible path to go to South?

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