CUET QUIZ
Physics
1 / 10
The magnetic moment of a current I carrying circular coil of radius r and number of turns N varies as
2 / 10
A spectral line is emitted when an electron
3 / 10
In an n-p-n transistor circuit the collector current is 18 mA. If 90% of the electrons emitted reach the collector, than the emitter current is:
4 / 10
Beta rays emitted by a radioactive material are
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When light is directed at the metal surface, the emitted electrons:
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The best metal to be used for photoemission is
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1 volt is equivalent to
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The force per unit charge is known as
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A test charge is moved from lower potential point to a higher potential point. The potential energy of test charge will
10 / 10
When an electron jumps from some outer orb it to the innermost orbit in the hydrogen atom, the spectral line belongs to
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