Skip to content
Competishun Header
Home
Courses
Test Series
Books
Free Resources
Result
Contact Us
Free Resources
Courses
Test Series
JEE Solutions
NCERT PDF
Books
Gallery
Result
Blogs
Watch JEE Free Lectures
↗
Download Our App
↗
Follow Us
Login / Register
Back
Report
Report Issue
×
Wrong Answer
Typo Error
Image Issue
Not Clear
Other
JEE MAIN 2019
09-04-2019 S2
Question
Which one of the following about an electron occupying the 1s orbital in a hydrogen atom is incorrect? (The Bohr radius is represented by a0)
Select the correct option:
A
The probability density of finding the electron is maximum at the nucleus
B
The electron can be found at a distance 2a0 from the nucleus
C
The magnitude of the potential energy is double that of its kinetic energy on an average
D
The total energy of the electron is maximum when it is at a distance a0 from the nucleus
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
View Solution
Solution
The total energy of the electron is minimum when it is at a distance a0 from the nucleus for 1 s orbital.
Question Tags
JEE Main
Chemistry
Medium
Start Preparing for JEE with Competishun
YouTube
Books
App
Tests
Filters
0
Subject
▾
Exam
▾
JEE Main
JEE Advance
Difficulty
▾
Easy
Medium
Hard
Year
▾
✕ Clear All
Showing
18
questions
Q
JEE Advcance 2008
2008
The balls, having linear momenta $\overrightarrow{\mathrm{p}}_1=\mathrm{p} \hat{\mathrm{i}}$ and $\overrightarrow{\mathrm{p}}_2=-\mathrm{p} \hat{\mathrm{i}}$, undergo a collision in free space. There is no external...
JEE Advance
Physics
Easy
View Solution
→
Q
JEE Advance2007
Let ABCD be a quadrilateral with area 18 , with side AB parallel to the side CD and $\mathrm{AB}=2 \mathrm{CD}$....
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance 2011
2011
Let $\mathrm{a}, \mathrm{b}$ and c be three real numbers satisfying $...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance2007
If $|z|=1$ and $z \neq \pm 1$, then all the values of $\frac{z}{1-z^2}$ lie on
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance2007
The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order as in...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance 2011
2011
Let $\mathrm{a}, \mathrm{b}$ and c be three real numbers satisfying $...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance 2008
2008
In a Young's double slit experiment, the separation between the two slits is d and the wavelength of the light...
JEE Advance
Physics
Easy
View Solution
→
Q
JEE Advance2007
$\frac{d^2 x}{d y^2}$ equals
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance2007
Let $\mathrm{f}(\mathrm{x})=\frac{\mathrm{x}}{\left(1+\mathrm{x}^{\mathrm{n}}\right)^{1 / \mathrm{n}}}$ for $\mathrm{n} \geq 2$ and $...
JEE Main
Mathematics
Easy
View Solution
→
Q
JEE Advance 2008
2008
Figure shows three resistor configurations R1, R2 and R3 connected to 3V battery. If the power dissipated by the configuration...
JEE Advance
Physics
Easy
View Solution
→
Q
JEE Advance2007
Let $\vec{a}, \vec{b}, \vec{c}$ be unit vectors such that $\vec{a}+\vec{b}+\vec{c}=\overrightarrow{0}$. Which one of the following is correct?
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE ADVANCE 2011
2011
Let $f:[-1,2] \rightarrow[0, \infty)$ be a continuous function such that $f(x)=f(1-x)$ for all $x \in[-1,2]$. Let $...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE ADVANCE 2011
2011
If $\lim _{x \rightarrow 0}\left[1+x \ln \left(1+b^2\right)\right]^{1 / x}=2 b \sin ^2 \theta, b>0$ and $\theta \in(-\pi, \pi]$, then the...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance 2011
2011
Let $\mathrm{U}_1$ and $\mathrm{U}_2$ be two urns such that $\mathrm{U}_1$ contains 3 white and 2 red balls, and $\mathrm{U}_2$ contains...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance2007
Match the crystal system/unit cells mentioned in Column I with their characteristic features mentioned in Column II. Indicate your answer...
JEE Advance
Chemistry
Easy
View Solution
→
Q
JEE Advance 2009
2009
Two metallic rings $A$ and $B$, identical in shape and size but having different resistivities $\rho_A$ and $\rho_B$, are kept...
JEE Advance
Physics
Easy
View Solution
→
Q
JEE Advance 2011
2011
Let $\mathrm{U}_1$ and $\mathrm{U}_2$ be two urns such that $\mathrm{U}_1$ contains 3 white and 2 red balls, and $\mathrm{U}_2$ contains...
JEE Advance
Mathematics
Easy
View Solution
→
Q
JEE Advance2007
Match the compounds/ions in Column I with their properties/reactions in Column II. Indicate your answer by darkenin the appropriate bubbles...
JEE Advance
Chemistry
Easy
View Solution
→
Load More Questions
Scan the code
Powered by
Joinchat
Hello 👋 Welcome to Competishun – India’s most trusted platform for JEE & NEET preparation.
Need help with JEE / NEET courses, fees, batches, test series or free study material? Chat with us now 👇
Open Chat