Which statement most correctly describes the relation between exobase and exosphere?
Answer and explanation
Correct answer: Above the exobase, molecular collisions become very rare and exospheric conditions dominate
Option A is correct. The exobase is the lower boundary of the exosphere, where the atmospheric mean free path becomes so large that collisions between particles are uncommon. Above this boundary, particles can follow long ballistic paths and some may escape Earth’s gravitational influence. It is not related to rainfall, the ozone maximum, or the lower boundary of the troposphere.
Frequently asked questions
What is the correct answer to this question?
Above the exobase, molecular collisions become very rare and exospheric conditions dominate
Why is this the correct answer?
Option A is correct. The exobase is the lower boundary of the exosphere, where the atmospheric mean free path becomes so large that collisions between particles are uncommon. Above this boundary, particles can follow long ballistic paths and some may escape Earth’s gravitational influence. It is not related to rainfall, the ozone maximum, or the lower boundary of the troposphere.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Financial Statements – II. Topic: Need for Adjustments.
