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## Marks 1

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Consider a wireless communication link between a transmitter and a receiver located in free space, with finite and stric...
GATE ECE 2017 Set 1
Light from free space is incident at an angle $${\theta _1}$$ to the normal of the facet of a step-index large core opti...
GATE ECE 2016 Set 2

## Marks 2

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The permittivity of water at optical frequencies is $$1.75{\varepsilon _0}$$. It is found that an isotropic light source...
GATE ECE 2017 Set 2
An optical fiber is kept along the$$\widehat Z$$ direction. The refractive indices for the electric fields along \wid...
GATE ECE 2017 Set 1
A radar operating at 5 GHz uses a common antenna for transmission and reception. The antenna has a gain of 150 and is al...
GATE ECE 2016 Set 3

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