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Electromagnetic...

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  • Question 1
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    Electromagnetic weave of frequency $$6 \times 10^{12}$$ Hz are traveling through free space. In which region of the e. m. spectrum, the waves will life?

  • Question 2
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    A light beam travelling in the x-direction is described by the electric field $${E_y} = 300v/m\sin \left( {t - \frac{x}{c}} \right)$$. An electron is constrained to move along the y-direction with a speed of $$2.0 \times {10^7}m/s.$$ Find the maximum magnetic force on the electron.

  • Question 3
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    A magnetic field can be produced by

  • Question 4
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    If at a certain instant, the magnetic induction of the electromagnetic wave in vacuum is $$6.7\times 10^{-12}T$$, then the magnitude of electric field intensity will be?

  • Question 5
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    Mark the correct option in impure spectrum :

  • Question 6
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    The electric field portion of an electromagnetic wave is given by(all variables in SI units) $$E=10^{-4}\sin(6\times 10^5t-0.01x)$$. The frequency (f) and the speed(v) of electromagnetic wave are?

  • Question 7
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    An electric field $$\vec {E}$$ and a magnetic field $$\vec{B}$$ exist in the region. The fields are not perpendicular to each other

  • Question 8
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    The electric field 'E' and magnetic field 'B' in electromagnetic waves are?

  • Question 9
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    Microwaves from a transmitter are directed normally towards a plane reflector. A detector moves along the normal to the reflector. Between positions of $$14$$ successive maxima the detector travels a distance $$0.14 m$$. The frequency of the transmitter is $$(c=3 \times 10_{8} m/s)$$

  • Question 10
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    An electromagnetic wave, going through vacuum is described by $$E=E_0 \sin (kx -\omega t)$$. Which of the following is independent of wavelength 

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