Competishun Header
Competishun
Contact Us
Back

Report Issue

JEE MAIN 2022
25-06-22 S1
Question
Incorrect statement for Tyndall effect is :-
Select the correct option:
A
The refractive indices of the dispersed phase and the dispersion medium differ greatly in magnitude.
B
The diameter of the dispersed particles is much smaller than the wavelength of the light used.
C
During projection of movies in the cinemas hall, Tyndall effect is noticed.
D
It is used to distinguish a true solution from a colloidal solution.
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
The diameter of dispersed particle should be somewhat below or near the wavelength of light.
Question Tags
JEE Main
Chemistry
Easy
Start Preparing for JEE with Competishun
YouTube
Books
App
Tests
Filters 0
JEE Main
JEE Advance
Easy
Medium
Hard
Showing 18 questions
QJEE Main 20262026
The number of elements in the set $\left\{x \in\left[0,180^{\circ}\right]: \tan \left(x+100^{\circ}\right)=\tan \left(x+50^{\circ}\right) \tan x \tan \left(x-50^{\circ}\right)\right\}$ is $\_\_\_\_$ .
JEE MainMathematicsMedium
View Solution→
QJEE Main 20262026
Let S be a set of 5 elements and $\mathrm{P}(\mathrm{S})$ denote the power set of S . Let E be...
JEE MainMathematicsHard
View Solution→
QJEE Main 20242024
Let z=(1+i)(1+2i)(1+3i)...(1+n i), where $i=\sqrt{-1}$. If $|z|^2=44200$, then $n$ is equal to
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
Let $(h, k)$ lie on the circle $\mathrm{C}: x^2+y^2=4$ and the point $(2 h+1,3 k+2)$ lie on an ellipse with...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20242024
If $f(x)$ satisfies the relation $f(x)=e^x+\int_0^1\left(y+x e^x\right) f(y) d y$, then $e+f(0)$ is equal to $\_\_\_\_$ .
JEE AdvanceMathematicsMedium
View Solution→
QJEE Main 20262026
Let [t] denote the greatest integer less than or equal to t. If the function
$...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
Let $\vec{a}=2 \hat{\mathrm{i}}-5 \hat{\mathrm{j}}+5 \hat{\mathrm{k}}$ and $\vec{b}=\hat{\mathrm{i}}-\hat{\mathrm{j}}+3 \hat{\mathrm{k}}$. If $\vec{c}$ is a vector such that $2(\vec{a} \times \vec{c})+3(\vec{b} \times \vec{c})=\overrightarrow{0}$...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
The smallest positive integral value of $a$, for which all the roots of $x^4-a x^2+9=0$ are real and distinct, is...
JEE MainMathematicsMedium
View Solution→
QJEE Main 20262026
Let $f$ be a function such that $3 f(x)+2 f\left(\frac{m}{19 x}\right)=5 x, x \neq 0$, where $m=\sum_{i=1}^9(i)^2$. Then $f(5)-f(2)$ is...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
Let $y=y(x)$ be a differentiable function in the interval $(0, \infty)$ such that $y(1)=2$, and $...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
Consider the following three statements for the function $f:(0, \infty) \rightarrow \mathbb{R}$ defined by $f(x)=\left|\log _e x\right|-|x-1|$ :
(I)...
JEE MainMathematicsEasy
View Solution→
QJEE Main 20262026
If the domain of the function $f(x)=\sin ^{-1}\left(\frac{1}{x^2-2 x-2}\right)$, is $(-\infty, \alpha] \cup[\beta, \gamma] \cup[\delta, \infty)$, then $\alpha+\beta+\gamma+\delta$ is equal...
JEE AdvanceMathematicsEasy
View Solution→
QJEE ADVANCE 20062006
Match the following:
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20062006
According to Bohr's theory, $\mathrm{E}_{\mathrm{n}}=$ Total energy $\mathrm{K}_{\mathrm{n}}=$ Kinetic energy $\mathrm{V}_{\mathrm{n}}=$ Potential energy $\mathrm{r}_{\mathrm{n}}=$ Radius of $\mathrm{n}^{\text {th }}$ orbit...
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20062006
Match the following:
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20062006
Match the extraction processes listed in Column I with metals listed in Column II:
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20062006
The edge length of unit cell of a metal having molecular weight $75 \mathrm{~g} / \mathrm{mol}$ is $5 \AA$ which...
JEE AdvanceChemistryEasy
View Solution→
QJEE ADVANCE 20062006
We have taken a saturated solution of $\mathrm{AgBr} . \mathrm{K}_{\text {sp }}$ of AgBr is $12 \times 10^{-14}$. If $10^{-7}$...
JEE AdvanceChemistryEasy
View Solution→
Check this project | Best Developer Portfolio