A jet plane leaves the stratosphere and returns to the ground. How does the temperature outside the jet change during its descen
t through the troposphere? A. It decreases and then increases. B. It decreases steadily. C. It increases steadily. D. It increases and then decreases.
2 answers:
Answer : A. It decreases and then increases.
Explanation : Troposphere is the lowermost layer of atmosphere.
Stratosphere is next layer up to the troposphere. As the jet descends from stratosphere towards the troposphere, the temperature initially decreases and then at troposphere is roughly constant and then steadily increases.
So, option (A) is correct.
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Given
velocity of driver =25 m/s w.r.t ground towards north
driver observes that rain is making an angle of with vertical
While returning =25 m/s w.r.t. ground towards south
suppose =velocity of rain drop relative car while car is going towards north
=velocity of rain drop relative car while car is going towards south
z=vector sum of
Now from graph
therefore magnitude of z is given by
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