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JEE Main Kinetic Theory & Oscillations — practice questions — page 2

Explore 33 free Kinetic Theory & Oscillations questions in JEE Main 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 31–33 of 33.

One word is wrongRead the answer and worked solution →Build the beat countRead the answer and worked solution →True or falseRead the answer and worked solution →

Worked practice questions

One word is wrong

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Questions
  1. Statement parts
    1. Every
    2. periodic
    3. motion
    4. is
    5. oscillatory
    Correction
    oscillatory motion is periodic
    Incorrect part
    periodic
  2. Statement parts
    1. The
    2. restoring
    3. force
    4. points
    5. away
    6. from
    7. centre
    Correction
    towards
    Incorrect part
    away
  3. Statement parts
    1. Total
    2. energy
    3. of
    4. an
    5. oscillator
    6. changes
    7. with
    8. time
    Correction
    is independent of
    Incorrect part
    changes
  4. Statement parts
    1. Frequency
    2. must
    3. always
    4. be
    5. an
    6. integer
    Correction
    need not
    Incorrect part
    always
Instructions
Tap the single word that makes the sentence false.
_Source: syllabus Physics Part II, Ch 13 'Oscillations'_

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Build the beat count

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Start
Item
Beats in one minute
Value
75
Steps
  1. Operation
    add
    Item
    Add a second minute
    Value
    75
  2. Operation
    sub
    Item
    Less one full minute
    Value
    75
Other choices
  1. Explanation
    Amplitude is a distance and has nothing to do with a count.
    Item
    Divide by the amplitude
  2. Explanation
    The phase constant fixes the starting point, not the rate.
    Item
    Add the phase constant
Instructions
Tap the steps in order to build the total. Wrong taps explain themselves.
Result
Beats per minute
_Source: syllabus Physics Part II, Ch 13 'Oscillations'_

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True or false

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Questions
  1. Statement is true
    Yes
    Statement
    Simple harmonic motion is the simplest oscillatory motion.
  2. Statement is true
    Yes
    Statement
    The restoring force points towards the mean position.
  3. Statement is true
    Yes
    Statement
    Total mechanical energy of an oscillator is constant in time.
  4. Statement is true
    No
    Statement
    Every periodic motion is also oscillatory.
  5. Statement is true
    No
    Statement
    Frequency must always be a whole number.
  6. Statement is true
    No
    Statement
    One hertz means sixty oscillations per second.
Instructions
Decide whether each statement is true or false.
_Source: syllabus Physics Part II, Ch 13 'Oscillations'_

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