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Electromagnetic...

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  • Question 1
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    The smaller the wavelength of light

  • Question 2
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    For an EM Wave, $$E = E_0 \sin 12\times 10^6 [ Z - 2\times 10^8t] \dfrac{N}{C}$$ In a medium, then its refractive index is 

  • Question 3
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    If $$P$$ represents radiation pressure, $$c$$ represents speed of lights and $$l$$ represents radiation energy striking a unit area per second, then non -zero integers $$x,y$$ and $$z$$ such that $$P^ xl^ yc^z$$ is dimensionless are

  • Question 4
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    The displacement current flows in a dielectric of a capacitor when the potential difference across its plates:

  • Question 5
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    The magnetic field in a plane electromagnetic field is given by $$B_y=2\times10^{-7} sin(0.5\times10^3z+1.5\times10^{11}t)T$$  
    The expression for the electric field may be given by 

  • Question 6
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    A metal block is exposed to beams of X-ray of different wavelength. X-rays of which wavelength penetrate most?

  • Question 7
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    If electric field in a non-magnetic medium for EM wave is given by $$\vec{ E } =100 \sin\left( 10^ 8\quad t\quad +2z \right) \hat { j }$$ then $$\vec {H}$$ is.

  • Question 8
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    The electric field of a plane electromagnetic wave is given by $$E=E_{0}\sin (kz-\omega t)[\hat i+\hat j]$$. Which of the following gives the direction of the associated magnetic field?

  • Question 9
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    In Maxwell's velocity distribution curve area under the graph 

  • Question 10
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    The displacement current was named as current because

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