## Mean Free Path - MCQ - Basic Level

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of Basic Level Questions on Mean Free Path. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules

•  Is decreased
•  Is increased
•  Remains unchanged
•  Increases or decreases according to the nature of the gas

Q2. The correct relation connecting Crms, Î» and collision frequency NC is

•  Nc = Crms/Î»
•  Nc = Î»/Crms
•  Nc = Î»Crms
•  Nc = Î»2Crms

Q3. The mean free path of gas molecules depends on (d = molecular diameter)

•  d
•  d2
•  d-2
•  d-1

Q4. Mean free path of the molecules of a gas depends on absolute temperature T as

•  T
•  T-1
•  T2
•  T4

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