All Courses
Get the App Signup / Login
Sign in Open App
NEET Exam  >  NEET Tests  >  Physics Class 11  >  Test: Waves - NEET MCQ

Test: Waves - NEET MCQ


Test Description

9 Questions MCQ Test Physics Class 11 - Test: Waves

Test: Waves for NEET 2024 is part of Physics Class 11 preparation. The Test: Waves questions and answers have been prepared according to the NEET exam syllabus.The Test: Waves MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Waves below.
Solutions of Test: Waves questions in English are available as part of our Physics Class 11 for NEET & Test: Waves solutions in Hindi for Physics Class 11 course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Waves | 9 questions in 60 minutes | Mock test for NEET preparation | Free important questions MCQ to study Physics Class 11 for NEET Exam | Download free PDF with solutions
Test: Waves - Question 1
Save

The path difference between two wavefronts emitted by coherent sources of wavelength 5460 Å is 2.1 micron . The phase difference between the wavefronts at that point is _

Detailed Solution for Test: Waves - Question 1

Test: Waves - Question 2
Save

 Monochromatic light is that light in which

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Waves - Question 3
Save

The path difference between two waves 
y1= A1 sin wt and y2= A2 cos (wt + f) will be

Detailed Solution for Test: Waves - Question 3

y1= A1 sin wt
y2= A2 cos (wt + f)
Now, y2 = A2 sin (wt + f + pi/2)
So, phase difference = f + pi/2
Path Difference = (λ/2pi)(f + pi/2)
Hence B.

Test: Waves - Question 4
Save

The resultant amplitude in interference with two coherent source depends upon _
Detailed Solution for Test: Waves - Question 4

Two sources are said to be coherent if there always exists a constant phase difference between the waves emitted by these sources. But when the sources are coherent, then the resultant intensity of light at a point will remain constant and so interference fringes will remain stationary.

Test: Waves - Question 5
Save

The necessary condition for phenomenon of interference to occur is
Detailed Solution for Test: Waves - Question 5

The necessary condition for phenomenon of interference to occur are:
1. There should be two coherent sources.
2. The frequency and amplitude of both the waves should be same.
3. The propagation of waves should be simultaneously and in same direction.
These are the conditions, no explanation.

*Answer can only contain numeric values
Test: Waves - Question 6
Save

A source (S) of sound has frequency 240 Hz. When the observer (O) and the source move towards each other at a speed v with respect to the ground (as shown in Case 1 in the figure), the observer measures the frequency of the sound to be 288 Hz. However, when the observer and the source move away from each other at the same speed v with respect to the ground (as shown in Case 2 in the figure), the observer measures the frequency of sound to be n Hz. The value of n is _______.

Detailed Solution for Test: Waves - Question 6

Calculation:

For Case 1 :

For Case 2 :

From (i) and (ii)

288 fapp = 240 × 240

fapp = 200 Hz

Test: Waves - Question 7
Save

An earthquake generates both transverse (S) and longitudinal (P) sound waves in the earth. The speed of S waves is about 4.5 km/s and that of P waves is about 8.0 km/s. A seismograph records P and S waves from an earthquake. The first P wave arrives 4.0 min before the first S wave. The epicenter of the earthquake is located at a distance about: 
Detailed Solution for Test: Waves - Question 7

Let the distance to the epicenter of the earthquake be d km. The time taken by the P waves to travel this distance is tP​, and the time taken by the S waves to travel this distance is tS​.

We know that:

tS ​− tP​ = 4minutes = 240seconds.

The relationship between speed, distance, and time is:

t = d/v​,

where vvv is the velocity and ttt is the time.

For the P waves:

tP ​= d/8.0​.

For the S waves:

tS ​= d​/4.5

From the time difference:

tS − tP = 240

Substitute the expressions for tS​ and tP​:

Find a common denominator and solve:

Simplify:

Thus, the distance to the epicenter is approximately 2500 km.

Test: Waves - Question 8
Save

An earthquake generates both transverse (S) and longitudinal (P) sound waves in the earth. The speed of S waves is about 4.5 km/s and that of P waves is about 8.0 km/s. A seismograph records P and S waves from an earthquake. The first P wave arrives 4.0 min before the first S wave. The epicenter of the earthquake is located at a distance about: 
Detailed Solution for Test: Waves - Question 8

Let the distance to the epicenter of the earthquake be d km. The time taken by the P waves to travel this distance is tP​, and the time taken by the S waves to travel this distance is tS​.

We know that:

tS ​− tP​ = 4minutes = 240seconds.

The relationship between speed, distance, and time is:

t = d/v​,

where vvv is the velocity and ttt is the time.

For the P waves:

tP ​= d/8.0​.

For the S waves:

tS ​= d​/4.5

From the time difference:

tS − tP = 240

Substitute the expressions for tS​ and tP​:

Find a common denominator and solve:

Simplify:

Thus, the distance to the epicenter is approximately 2500 km.

Test: Waves - Question 9
Save

A source of the sound of frequency 256 Hz is moving rapidly towards a wall with a velocity of 5 m/s. The speed of sound is 330 m/s. If the observer is between the wall and the source, then beats per second heard will be.
Detailed Solution for Test: Waves - Question 9

The observer will hear two sounds, one directly from the source and the other reflected image of sound. Hence, the number of beats heard per second is

97 videos|378 docs|103 tests
Join Course
Information about Test: Waves Page
In this test you can find the Exam questions for Test: Waves solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Waves, EduRev gives you an ample number of Online tests for practice

Top Courses for NEET

97 videos|378 docs|103 tests
Join Course
Download as PDF

Top Courses for NEET

Important Questions for Waves

Find all the important questions for Waves at EduRev.Get fully prepared for Waves with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Waves syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Waves resources.

Waves MCQs with Answers

Prepare for the Waves within the NEET exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Waves Physics Class 11

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Waves with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup