Consider a digital transmission system using ook. the received output volt age pulse has a gaussian shape for binary "1" as follows: t2 u(t) = aexp(-202 where a is the peak pulse amplitude and σ is the pulse width at 60.7% level. the pulse is flat0) for binary "o". derive an equation for the maximum bit rate such that the vertical opening of the eye diagram is more than 80% of a. you can assume that the tails from bits that are (7 marks) not adjacent are negligible.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

force tends to be low and long diustance masses are high