Competishun
Contact Us
Back

Report Issue

JEE ADVANCE 2012
paper 1
Multiple correct answers - Select all that apply
Question
A person blows into open-end of a long pipe. As a result, a high-pressure pulse of air travels down the pipe. When this pulse reaches the other end of the pipe.
Select ALL correct options:
A
a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
B
a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
C
a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.
D
a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
⚠ Partially correct. Some answers are missing.
Solution
Solution Image
Question Tags
JEE Advance
Physics
Easy
Start Preparing for JEE with Competishun
YouTube
Books
App
Tests
Filters 0
JEE Main
JEE Advance
Easy
Medium
Hard
Showing 18 questions
QJEE Advance 20122012
The major product H in the given reaction sequence is
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20122012
The total number of ways in which 5 balls of different colours can be distributed among 3 persons so that...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20122012
The shape of $\mathrm{XeO}_2 \mathrm{~F}_2$ molecule is
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20122012
Let $z$ be a complex number such that the imaginary part of $z$ is non zero and $a=z^2+z+1$ is real....
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20122012
Using the data provided, calculate the multiple bond energy $\left(\mathrm{kJ} \mathrm{mol}^{-1}\right)$ of a $\mathrm{C} \equiv \mathrm{C}$ bond $\mathrm{C}_2 \mathrm{H}_2$. That...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20122012
The compound that undergoes decarboxlylation most readily under mild condition is
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
Perpendicular are drawn from points on the line $\frac{x+2}{2}=\frac{y+1}{-1}=\frac{z}{3}$ to the plane $x+y+z=3$. The feet of perpendiculars lie on the...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
For $a \in R$ (the set of all real numbers), $a \neq-1, \lim _{n \rightarrow \infty} \frac{\left(1^a+2^a+\ldots+n^a\right)}{(n+1)^{a-1}[(n a+1)+(n a+2)+\ldots+(n a+n)]}=\frac{1}{60}$....
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
For $a>b>c>0$, the distance between $(1,1)$ and the point of intersection of the lines $a x+b y+c=0$ and $...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20122012
In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20122012
The reaction of white phosphorous with aqueous NaOH gives phosphine along with another phosphorus containing compound. The reaction type; the...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
Let complex numbers $\alpha$ and $\frac{1}{\bar{\alpha}}$ lies on circles $\left(x-x_0\right)^2+\left(y-y_0\right)^2=r^2$ and $\left(x-x_0\right)^2+\left(y-y_0\right)^2=4 r^2$, respectively. If $\mathrm{z}_0=\mathrm{x}_0+\mathrm{iy}$ satisfies the equation $2\left|\mathrm{z}_0\right|^2=\mathrm{r}^2+2$,...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
Let $\overrightarrow{P R}=3 \hat{i}+\hat{j}-2 \hat{k}$ and $\overrightarrow{S Q}=\hat{i}-3 \hat{j}-4 \hat{k}$ determine diagonals of a parallelogram $P Q R S$ and...
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
A tetrapeptide has -COOH group on alanine. This produces glycine (Gly), valine (Val), phenyl alanine (Phe) and alanine (Ala), on...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
The value of $\cot \left(\sum_{n=1}^{23} \cot ^{-1}\left(1+\sum_{k=1}^n 2 k\right)\right)$ is
JEE AdvanceMathematicsEasy
View Solution→
QJEE Advance 20132013
EDTA ${ }^4$ is ethylenediaminetetraacetate ion. The total number of $\mathrm{N}-\mathrm{CO}-\mathrm{O}$ bond angles in $[\mathrm{CO}(\text { EDTA })]^{1-}$ complex ion...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20122012
$\mathrm{NiCl}_2\left\{\mathrm{P}_{\left(\mathrm{C}_2 \mathrm{H}_5\right)_2}\left(\mathrm{C}_6 \mathrm{H}_5\right)\right\}_2$ exhibits temperature dependent magnetic behaviour (paramagnetic/ diamagnetic). the coordination geometries of $\mathrm{Ni}^{2+}$ in the paramagnetic and diamagnetic...
JEE AdvanceChemistryEasy
View Solution→
QJEE Advance 20132013
The atomic masses of He and Ne are 4 and 20 a.m.u., respectively. The value of the de Broglie wavelength...
JEE AdvanceChemistryEasy
View Solution→