1
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
In the ground state of hydrogen atom, electron absorbs 1.5 times energy than the minimum energy $\left(2.18 \times 10^{-18} \mathrm{~J}\right)$ to escape from the atom. The wavelength of the emitted electron (in $m$ ) is ( $m_e=9 \times 10^{-31} \mathrm{~kg}$ )
A
$\frac{h \times 10^{24}}{\sqrt{1.962}}$
B
$\frac{h}{\sqrt{1.962}} \times 10^{23}$
C
$\frac{h}{\sqrt{1.962}} \times 10^{25}$
D
$\frac{h}{\sqrt{1.962}} \times 10^{22}$
2
AP EAPCET 2024 - 19th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A golf ball of mass $m \mathrm{~g}$ has a speed of $50 \mathrm{~ms}^{-1}$. If the speed can be measured within accuracy of $2 \%$ the uncertainty in the position is (in m)
A
$\frac{h}{4 \pi m}$
B
$\frac{h}{16 \pi m}$
C
$\frac{h}{4 \pi m} \times 10^3$
D
$\frac{h}{16 \pi m} \times 10^3$
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The de-Broglie wavelength of a particle of mass 1 mg moving with a velocity of $10 \mathrm{~ms}^{-1}$ is $\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right.$ )
A
$6.63 \times 10^{-20} \mathrm{~m}$
B
$663 \times 10^{-31} \mathrm{~m}$
C
$663 \times 10^{-34} \mathrm{~m}$
D
$663 \times 10^{-22} \mathrm{~m}$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Correct set of four quantum numbers for the valence electron of strontium $(z=38)$ is
A
$5.0 .0+\frac{1}{2}$
B
$51, a+\frac{1}{2}$
C
$5.11+\frac{1}{2}$
D
$6, a a+\frac{1}{2}$
AP EAPCET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12