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Physics Test - ...

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  • Question 1
    1 / -0

    When one joule of energy is consumed in one second, then the power used is said to be?

  • Question 2
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    What is the effect on the interference fringes in Young's double slit experiment if the width of the source slit is increased?

  • Question 3
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    Which of the following are quick electron emissions?

  • Question 4
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    A particle of mass \({m}\) and charge \({q}\) is placed at rest in a uniform electric field \(E\) and then released. The kinetic energy attained by the particle after moving distance \(y\) is:

  • Question 5
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    In case of steady electric field in between region of the parallel plate capacitor. The magnitude of displacement current is:

  • Question 6
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    The maximum velocity of the photoelectrons emitted from the surface is \(v\) when light of frequency \(n\) falls on a metal surface. If the incidence frequency is increased in \(3 n\). The maximum velocity of the ejected photoelectron will be:

  • Question 7
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    Two coherent waves are \(y_{1}=a \cos (\omega t)\) and \(y_{2}=2 a \cos (\omega t)\). If the two waves undergo constructive interference, then the resultant amplitude will be:

  • Question 8
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    Two small charged spheres \(A\) and \(B\) have charges \(10 µC\) and \(940 µC\), respectively, and are held at a separation of \(90\) cm from each other. At what distance from \(A\) would the electric intensity be zero?

  • Question 9
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    An electron and proton enters a magnetic field with equal velocities. Which one of them experiences more force?

  • Question 10
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    An equilateral triangular prism is made of glass \((\mu=1.5)\). A ray of light is incident normally on one of its faces. The angle between the incident and emergent rays is

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