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Physics Test - ...

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  • Question 1
    5 / -1

    The electron emitted in β – radiation originates from where?

  • Question 2
    5 / -1

    What is an oscillator?

  • Question 3
    5 / -1

    What is the ripple factor for a half-wave rectifier?

  • Question 4
    5 / -1

    How many types of Integrated Circuits are there?

  • Question 5
    5 / -1

    The frequencies for transmitting music is which of the following?

  • Question 6
    5 / -1

    Why is AM used for broadcasting in the communication systems?

  • Question 7
    5 / -1

    Find the probability that the nucleus of 87Ra221 undergoes decay after three half-lives if it’s a radioactive substance that has a half-life of 6 days.

  • Question 8
    5 / -1

    What is rectification?

  • Question 9
    5 / -1

    A magnet can only repel another magnet. So, ‘X’ is a surer test of magnetism. Identify X.

  • Question 10
    5 / -1

    A bar magnet of the magnetic moment 5 Am2 has poles 20 cm apart. Calculate the pole strength.

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