1
JEE Advanced 2024 Paper 1 Online
Numerical
+4
-0
A source (S) of sound has frequency $240 \mathrm{~Hz}$. 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 $288 \mathrm{~Hz}$. 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 $n \mathrm{~Hz}$. The value of $n$ is ___________.
![JEE Advanced 2024 Paper 1 Online Physics - Waves Question 1 English](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lwpvs7oa/05f54ed9-becc-4433-bd99-762c9bca5acb/6de7dc90-1ca8-11ef-a7f1-8b6b33c30c4d/file-6y3zli1lwpvs7ob.png?format=png)
![JEE Advanced 2024 Paper 1 Online Physics - Waves Question 1 English](https://app-content.cdn.examgoal.net/fly/@width/image/6y3zli1lwpvs7oa/05f54ed9-becc-4433-bd99-762c9bca5acb/6de7dc90-1ca8-11ef-a7f1-8b6b33c30c4d/file-6y3zli1lwpvs7ob.png?format=png)
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2
JEE Advanced 2023 Paper 2 Online
Numerical
+4
-0
A string of length $1 \mathrm{~m}$ and mass $2 \times 10^{-5} \mathrm{~kg}$ is under tension $T$. When the string vibrates, two successive harmonics are found to occur at frequencies $750 \mathrm{~Hz}$ and $1000 \mathrm{~Hz}$. The value of tension $T$ is ________ Newton.
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3
JEE Advanced 2023 Paper 2 Online
Numerical
+3
-0
$S_1$ and $S_2$ are two identical sound sources of frequency $656 \mathrm{~Hz}$. The source $S_1$ is located at $O$ and $S_2$ moves anti-clockwise with a uniform speed $4 \sqrt{2} \mathrm{~m} \mathrm{~s}^{-1}$ on a circular path around $O$, as shown in the figure. There are three points $P, Q$ and $R$ on this path such that $P$ and $R$ are diametrically opposite while $Q$ is equidistant from them. A sound detector is placed at point $P$. The source $S_1$ can move along direction $O P$.
[Given: The speed of sound in air is $324 \mathrm{~m} \mathrm{~s}^{-1}$ ]
![JEE Advanced 2023 Paper 2 Online Physics - Waves Question 4 English Comprehension](https://app-content.cdn.examgoal.net/fly/@width/image/1liiq7yfg/5a28ce89-6459-4ef8-b224-8e7eb54e70cc/2915d4c0-038e-11ee-add3-0f52d4fe427d/file-1liiq7yfh.png?format=png)
[Given: The speed of sound in air is $324 \mathrm{~m} \mathrm{~s}^{-1}$ ]
![JEE Advanced 2023 Paper 2 Online Physics - Waves Question 4 English Comprehension](https://app-content.cdn.examgoal.net/fly/@width/image/1liiq7yfg/5a28ce89-6459-4ef8-b224-8e7eb54e70cc/2915d4c0-038e-11ee-add3-0f52d4fe427d/file-1liiq7yfh.png?format=png)
When only $S_2$ is emitting sound and it is at $Q$, the frequency of sound measured by the detector in $\mathrm{Hz}$ is _________.
Your input ____
4
JEE Advanced 2023 Paper 2 Online
Numerical
+3
-0
$S_1$ and $S_2$ are two identical sound sources of frequency $656 \mathrm{~Hz}$. The source $S_1$ is located at $O$ and $S_2$ moves anti-clockwise with a uniform speed $4 \sqrt{2} \mathrm{~m} \mathrm{~s}^{-1}$ on a circular path around $O$, as shown in the figure. There are three points $P, Q$ and $R$ on this path such that $P$ and $R$ are diametrically opposite while $Q$ is equidistant from them. A sound detector is placed at point $P$. The source $S_1$ can move along direction $O P$.
[Given: The speed of sound in air is $324 \mathrm{~m} \mathrm{~s}^{-1}$ ]
![JEE Advanced 2023 Paper 2 Online Physics - Waves Question 3 English Comprehension](https://app-content.cdn.examgoal.net/fly/@width/image/1liiq7yfg/5a28ce89-6459-4ef8-b224-8e7eb54e70cc/2915d4c0-038e-11ee-add3-0f52d4fe427d/file-1liiq7yfh.png?format=png)
[Given: The speed of sound in air is $324 \mathrm{~m} \mathrm{~s}^{-1}$ ]
![JEE Advanced 2023 Paper 2 Online Physics - Waves Question 3 English Comprehension](https://app-content.cdn.examgoal.net/fly/@width/image/1liiq7yfg/5a28ce89-6459-4ef8-b224-8e7eb54e70cc/2915d4c0-038e-11ee-add3-0f52d4fe427d/file-1liiq7yfh.png?format=png)
Consider both sources emitting sound. When $S_2$ is at $R$ and $S_1$ approaches the detector with a speed $4 \mathrm{~m} \mathrm{~s}^{-1}$, the beat frequency measured by the detector is _________ $\mathrm{Hz}$.
Your input ____
Questions Asked from Waves (Numerical)
Number in Brackets after Paper Indicates No. of Questions
JEE Advanced 2024 Paper 1 Online (1)
JEE Advanced 2023 Paper 2 Online (3)
JEE Advanced 2020 Paper 1 Offline (1)
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JEE Advanced 2015 Paper 2 Offline (1)
IIT-JEE 2010 Paper 1 Offline (2)
IIT-JEE 2009 Paper 2 Offline (1)
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