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DISHA-ELECTROMAGNETIC WAVES-Physics
- A point source of 2 watt is radiating uniformly in all direction in va...
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- In an electomegnetic wave, the amplitude of electric field is 10V//m. ...
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- Electro magnetic waves travel in a medium with speed of 2xx10^(8)m//se...
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- The magnetic field in the plane electromagnetic wave is given by B(z...
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- The electric field of a plane electromagnetic wave in vacuum is repres...
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- A light beam travelling in the x-direction is described by the eectirc...
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- Which of the following waves have the maximum wavelength?
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- Electromagnetic waves travel in a medium which has relative permeabili...
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- if lamda(v'),lamda(x) and lamda(m) represent the wavelengths of visibl...
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- Light wave is travelling along y-direction. If the corresponding vecE ...
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- A wave is propagating in a medium of dielectric constant 2 and relativ...
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- Which of the following statements are true ?
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- Which of the following are electromagnetic waves ?
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- An electromagnetic wave of frequency v=3.0 MHz passes from vacuum into...
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- The electron density of a layer of ionosphere at a height 150 km from ...
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- The electron density of a layer of ionosphere at a height 150 km from ...
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- The electron density of a layer of ionosphere at a height 150 km from ...
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- Assertion: The electromagnetic waves of shorter wavelength can travel ...
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- Assertion: Ultraviolet radiation are of higher frequency waves are dan...
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- Statement-1: Radio waves can be polarised. Statement-2: Sound waves ...
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