Class 9 Exam  >  Class 9 Questions  >  Assertion (A): Sound is a form of energy that... Start Learning for Free
Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.
Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.
  • a)
    If both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b)
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
  • c)
    If Assertion is true but Reason is false
  • d)
    If both Assertion and Reason are false
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Assertion (A): Sound is a form of energy that produces a sensation of ...
The Assertion statement is correct as sound is indeed a form of energy that leads to the sensation of hearing in our ears.
The Reason statement is also correct as it accurately describes sound waves as longitudinal waves where particles move parallel to the direction of wave propagation.
However, the Reason does not directly explain the Assertion, so the correct answer is Option B.
View all questions of this test
Most Upvoted Answer
Assertion (A): Sound is a form of energy that produces a sensation of ...
Assertion and Reason Overview
The Assertion (A) states that sound is a form of energy that produces a sensation of hearing in our ears. The Reason (R) explains that sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.
Analysis of Assertion (A)
- Sound is indeed a form of energy.
- It requires a medium (solid, liquid, or gas) to travel.
- When sound waves reach our ears, they stimulate the auditory system, leading to the sensation of hearing.
Analysis of Reason (R)
- Sound waves are classified as longitudinal waves.
- In longitudinal waves, the displacement of the medium's particles is parallel to the direction of the wave's travel.
- This characteristic is crucial for understanding how sound propagates.
Connection Between A and R
- Both the Assertion and the Reason are true statements.
- While the Reason explains the nature of sound waves, it does not fully explain why sound produces a sensation of hearing.
- The sensation of hearing involves complex processes in the ear and brain, which are not covered by the explanation of sound waves alone.
Conclusion
- Since both statements are true but the Reason does not adequately explain the Assertion, the correct answer is option 'B': both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Explore Courses for Class 9 exam
Question Description
Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? for Class 9 2026 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Assertion (A): Sound is a form of energy that produces a sensation of hearing in our ears.Reason (R): Sound waves are longitudinal waves where individual particles of the medium move in a direction parallel to the direction of wave propagation.a)If both Assertion and Reason are true and Reason is the correct explanation of Assertionb)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is falsed)If both Assertion and Reason are falseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 9 tests.
Explore Courses for Class 9 exam

Top Courses for Class 9

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev