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NEET Exam  >  NEET Test  >  NCERT Based Tests  >  Assertion & Reason Test: Waves - NEET MCQ

Waves - Free Assertion & Reason Questions with Solutions NEET NCERT Based


MCQ Practice Test & Solutions: Assertion & Reason Test: Waves (10 Questions)

You can prepare effectively for NEET NCERT Based Tests for NEET with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Assertion & Reason Test: Waves". These 10 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 10

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Assertion & Reason Test: Waves - Question 1
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Two persons on the surface of moon cannot talk to each other.

Reason : There is no atmosphere on moon.

Detailed Solution: Question 1

Sound waves require material medium to travel. As there is no atmosphere (vacuum) on the surface of moon, therefore the sound waves cannot reach from one person to another.

Assertion & Reason Test: Waves - Question 2
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Sound waves cannot propagate through vacuum but light waves can.

Reason : Sound waves cannot be polarised but light waves can be polarised.

Detailed Solution: Question 2

Sound waves cannot propagate through vacuum because sound waves are mechanical waves. Light waves can propagate through vacuum because light waves are electromagnetic waves. Since sound waves are longitudinal waves, the particles moves in the direction of propagation, therefore these waves cannot be polarised.

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Assertion & Reason Test: Waves - Question 3
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Ocean waves hitting a beach are always found to be nearly normal to the shore.

Reason : Ocean waves are longitudinal waves.

Detailed Solution: Question 3

Ocean waves are transverse waves travelling in concentric circles of ever increasing radius. When they hit the shore, their radius of curvature is so large that they can be treated as plane waves. Hence they hit the shore nearly normal to the shore.

Assertion & Reason Test: Waves - Question 4
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Transverse waves travel through air in an organ pipe.

Reason : Air possesses only volume elasticity.

Detailed Solution: Question 4

Since transverse wave can propagate through medium which posses elasticity of shape. Air posses only volume elasticity therefore transverse wave cannot propagate through air.

Assertion & Reason Test: Waves - Question 5
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : The basic of Laplace correction was that, exchange of heat between the region of compression and rarefaction in air is not possible.

Reason : Air is a bad conductor of heat and velocity of sound in air is large.

Detailed Solution: Question 5

According to Laplace, the changes in pressure and volume of a gas, when sound waves propagated through it, are not isothermal, but adiabatic. A gas is a bad conductor of heat. It does not allow the free exchange of heat between compressed layer, rarefied layer and surrounding.

Assertion & Reason Test: Waves - Question 6
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : When we start filling an empty bucket with water, the pitch of sound produced goes on decreasing.

Reason : The frequency of man voice is usually higher than that of woman.

Detailed Solution: Question 6

A bucket can be treated as a pipe closed at one end. The frequency of the note produced = u/4L, here L equal to depth of water level from the open end. As the bucket is filled with water L decreases, hence frequency increases. Therefore, frequency or pitch of sound produced goes on increasing. Also, the frequency of woman voice is usually higher than that of man.

Assertion & Reason Test: Waves - Question 7
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : Solids can support both longitudinal and transverse waves but only longitudinal waves can propagate in gases.

Reason : For the propagation of transverse waves, medium must also neccessarly have the property of rigidity.

Detailed Solution: Question 7

For the propagation of transverse waves, medium must have the property of rigidity. Because gases have no rigidity, (they do not posses shear elasticity), hence transverse waves cannot be produced is gases. On the other hand, the solids possess both volume and shear elasticity and likewise both the longitudinal and transverse waves can be transmitted through them.

Assertion & Reason Test: Waves - Question 8
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : The speed of sound in solids is maximum though their density is large.

Reason : The coefficient of elasticity of solid is large.

Detailed Solution: Question 8

The velocity of sound in solid is given by,

Though ρ is large for solids, their coefficient of elasticity E is much larger (compared to that of liquids and gases). That is why v is maximum in case of solid.

Assertion & Reason Test: Waves - Question 9
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : On a rainy day sound travel slower than on a dry day.

Reason : When moisture is present in air the density of air increases.

Detailed Solution: Question 9

When moisture is present in air, the density of air decreases. It is because the density of water vapours is less than that of dry air. The velocity of sound is inversely proportional to the square root of density, hence sound travel faster in moist air than in the dry air. Therefore, on a rainy day sound travels faster than on a dry day.

Assertion & Reason Test: Waves - Question 10
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Read the assertion and reason carefully to mark the correct option out of the options given below:

Assertion : To hear distinct beats, difference in frequencies of two sources should be less than 10.

Reason : More the number of beats per sec more difficult to hear them.

Detailed Solution: Question 10

According to the property of persistence of hearing, the impression of a sound heard persists on our mind for 1/10 sec. Therefore, number of beats per sec should be less than 10. Hence difference in frequencies of two sources must be less than 10.

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About this NEET Practice Test

This test contains 10 MCQs on Assertion & Reason Test: Waves with detailed solutions for each question. It is part of the NCERT Based Tests for NEET course on EduRev, designed to align with the current NEET syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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