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The lowest layer in the structure of atmosphere extends to a distance of _____km from earth surface

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The lowest layer in the structure of atmosphere extends to a distance of _____km from earth surface

(a) 15m

(b) 15km

(c) 50m

(d) 50km

I had been asked this question in class test.

The origin of the question is Radio Wave Propagation in chapter Radio Wave Propagation of Antennas

1 Answer

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Best answer
The correct option is (b) 15km

The explanation is: The lowest layer of the atmosphere is troposphere. So it ranges up to 15km from the surface of the earth. The gas components remain almost constant in this region.

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