Mechanics
Units & Measurement and Dimensions
MCQ (Single Correct Answer)
Motion in a Straight Line
MCQ (Single Correct Answer)
Work, Energy and Power
MCQ (Single Correct Answer)
Center of Mass and Collision
MCQ (Single Correct Answer)
Heat and Thermodynamics
MCQ (Single Correct Answer)
Simple Harmonic Motion
MCQ (Single Correct Answer)
Electromagnetism
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Alternating Current
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Dual Nature of Radiation
MCQ (Single Correct Answer)
Semiconductor Devices and Logic Gates
MCQ (Single Correct Answer)
Communication Systems
MCQ (Single Correct Answer)
1
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The half-life period of a radioactive element $A$ is 62 years. It decays into another stable element $B$. An archaeologist found a sample in which $A$ and $B$ are in 1:15 ratio. The age of the sample is

A
248 years
B
186 years
C
124 years
D
310 years
2
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The electrostatic potential energy of the electron in an orbit of hydrogen is -6.8 eV . The speed of the electron in this orbit is ( $c$ is speed of light in vacuum)
A
$\frac{c}{137}$
B
$\frac{c}{274}$
C
$\frac{2 c}{137}$
D
$\frac{3 c}{137}$
3
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The surface areas of two nuclei are in the ratio $9: 25$. The mass number of the nuclei are in the ratio
A
$27: 125$
B
$9: 25$
C
$3: 5$
D
$1: 1$
4
AP EAPCET 2024 - 21th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The ground state energy of hydrogen atom is -13.6 eV . The potential energy of the electron in this state is
A
27.2 eV
B
-27.2 eV
C
-13.6 eV
D
13.6 eV
AP EAPCET Subjects