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What changes will be observed in an elec...

What changes will be observed in an electric cell if the electrodes used in it are brought very close to each other and if their size are increased?

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Knowledge Check

  • A and B are two identical point sources of acoustic waves, each producing sound of 1 kHz. They are located in two trains, one in each of the engines of the trains which runs on two close parallel . An observer is standing in between the tracks and listening to the sound received from of the sources. If one of the trains remains stationary while the other train recedes from the observer with a speed which is 1% of the velocity of sound in air, the number of beats heard by the observer per seconds will be (in Hz)

    A
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    B
    greater than 10
    C
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    D
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