1
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0
The shortest wavelength in Lyman series is $912 \mathop {\rm{A}}\limits^{\rm{o}}$. Then, the longest wavelength in the series must be
A
$9120 \mathop {\rm{A}}\limits^{\rm{o}}$
B
$1824\mathop {\rm{A}}\limits^{\rm{o}}$
C
$1216 \mathop {\rm{A}}\limits^{\rm{o}}$
D
$2432\mathop {\rm{A}}\limits^{\rm{o}}$
2
TS EAMCET 2020 (Online) 14th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Half-life of radioactive sample is 24 h . If a newly prepared radioactive sample shows 4 times the allowed and safe value of radio activity, the minimum time after which one can work safely with the source is

A

48 h

B

96 h

C

8 h

D

72 h

3
TS EAMCET 2020 (Online) 11th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The binding energy (BE) per nucleon for an element is 7.14 MeV . If the BE of element is 28.6 MeV , then the number of nucleons in the element is

A

4

B

8

C

16

D

32

4
TS EAMCET 2020 (Online) 11th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Let $G, W, E$ and $S$ be relative strength of gravitational, weak-nuclear, electromagnetic and strong-nuclear forces, respectively. Which of the correct statement?

A

$S>W>E>G$

B

$E>W>S>G$

C

$S>E>W>G$

D

$S>E>G>W$

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