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CBSE Class 11 (Science) Kinetic Theory & Oscillations — practice questions

Explore 180 free Kinetic Theory & Oscillations questions in CBSE Class 11 (Science) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Kinetic Theory & Oscillations questions and exercises with answers

Showing questions 1–30 of 180.

A diatomic ideal gas has $C_v = \tfrac{5}{2}R$. Its $C_p$ and ratio $\gamma$ are:Read the answer and worked solution →NEET · Physics · Kinetic Theory — SortRead the answer and worked solution →NEET · Physics · Oscillation Period — Gap FillRead the answer and worked solution →The introduction of atomic theory in modern science is credited to:Read the answer and worked solution →Equal volumes of all gases at the same conditions hold:Read the answer and worked solution →The number of molecules in 22.4 litres of any gas is called:Read the answer and worked solution →The mass of 22.4 litres of a gas at STP equals its:Read the answer and worked solution →Standard temperature at STP is taken as:Read the answer and worked solution →The amount of substance in 22.4 litres at STP is one:Read the answer and worked solution →In the kinetic theory, collisions between molecules are taken as:Read the answer and worked solution →Elastic collisions in a gas imply the conservation of:Read the answer and worked solution →Molecules of a gas are described as being in motion that is:Read the answer and worked solution →The average kinetic energy of a gas molecule depends only on:Read the answer and worked solution →A molecule free to move in space needs how many coordinates?Read the answer and worked solution →A molecule confined to a plane has how many degrees of freedom?Read the answer and worked solution →Motion of a body as a whole from one point to another is called:Read the answer and worked solution →A gas like argon has which kind of degrees of freedom only?Read the answer and worked solution →Argon is an example of which kind of gas?Read the answer and worked solution →The mean free path in gases is of the order of:Read the answer and worked solution →Compared with solids, atoms in gases are much:Read the answer and worked solution →Molecules in a gas move at speeds of the order of the speed of:Read the answer and worked solution →Match each idea to its statementRead the answer and worked solution →Sort each by degrees of freedomRead the answer and worked solution →True or false about kinetic theoryRead the answer and worked solution →Fill the gaps on kinetic theoryRead the answer and worked solution →Gas behaviour or solid behaviour?Read the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Order the reasoning to gas pressureRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Motion that repeats to and fro about a mean position is called:Read the answer and worked solution →

Worked practice questions

A diatomic ideal gas has $C_v = \tfrac{5}{2}R$. Its $C_p$ and ratio $\gamma$ are:

  1. $\tfrac{5}{2}R$ and $\gamma = 1$, equal $C_v$ and $C_p$
  2. $\tfrac{3}{2}R$ and $\gamma = 5/3$, monatomic values here
  3. $\tfrac{9}{2}R$ and $\gamma = 2$, doubling all values
  4. $\tfrac{7}{2}R$ and $\gamma = 7/5$, since $C_p = C_v + R$
Show answer and solution

Correct answer: D. $\tfrac{7}{2}R$ and $\gamma = 7/5$, since $C_p = C_v + R$

$C_p = C_v + R = \tfrac{7}{2}R$; $\gamma = C_p/C_v = 7/5$.

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NEET · Physics · Kinetic Theory — Sort

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Items
  1. Item
    Higher temperature gas
    Answer
    left
  2. Item
    Cooled gas at fixed P
    Answer
    right
  3. Item
    Lighter molecules at same T
    Answer
    left
  4. Item
    Heavier molecules at same T
    Answer
    right
  5. Item
    Hydrogen at 300 K vs Oxygen at 300 K
    Answer
    left
  6. Item
    Argon at 100 K vs Argon at 400 K
    Answer
    right
Categories
Left
Faster molecules
Right
Slower molecules
Instructions
Sort each scenario: which gas has faster average molecules?

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NEET · Physics · Oscillation Period — Gap Fill

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Missing parts
  1. Answer
    L/g
    Choices
    1. L/g
    2. g/L
    3. m/k
    4. k/m
  2. Answer
    m/k
    Choices
    1. L/g
    2. g/L
    3. m/k
    4. k/m
Complete the statement
Simple pendulum: T = 2π√({0}). Spring-mass: T = 2π√({1}).
Instructions
Fill in the radical for each oscillator's period.

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