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1
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The average energy of a neutron produced in the fission of ${ }_{92}^{235} \mathrm{U}$ is

A

$160 \times 10^{-13} \mathrm{~J}$

B

$320 \times 10^{-15} \mathrm{~J}$

C

$320 \times 10^{-13} \mathrm{~J}$

D

$160 \times 10^{-15} \mathrm{~J}$

2
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If $96.875 \%$ of a radioactive substance decays in 10 days, then the half life of the substance is (in days)

A

10

B

5

C

4

D

2

3
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
In hydrogen atom, the frequency of the photon emitted when an electron jumps from second orbit to first orbit is $f$. The frequency of the photon emitted when an electron jumps from third excited state to first excited state is
A
$\frac{f}{2}$
B
$\frac{f}{4}$
C
$\frac{f}{8}$
D
$f$
4
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If the ratio of the radii of nuclei ${ }_{52} X^{A}$ and ${ }_{13} \mathrm{AI}^{27}$ is $5: 3$, then the number of neutrons in the nucleus $X$ is
A
52
B
63
C
27
D
73
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