A. An electron is injected perpendicularly into the magnetic
field of flux density 0.8 T. Find the radius of circular path
followed by electron if it is accelerated by source of P. D.
200 volts.
poolorated from rest through
Whoever solve this I will give him the brainliest.

answer: i don't know the answer good luck

explanation:

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.