1
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Assume that a neutron breaks into a proton and an electron. The energy released during this process is : (mass of neutron $$ = 1.6725 \times {10^{ - 27}}kg,$$ mass of proton $$ = 1.6725 \times {10^{ - 27}}\,kg,$$ mass of electron $$ = 9 \times {10^{ - 31}}\,kg$$ ).
A
$$0.51$$ $$MeV$$
B
$$7.10\,MeV$$
C
$$6.30\,MeV$$
D
$$5.4\,MeV$$
2
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
A diatomic molecule is made of two masses $${m_1}$$ and $${m_2}$$ which are separated by a distance $$r.$$ If we calculate its rotational energy by applying Bohr's rule of angular momentum quantization, its energy will be given by: ($$n$$ is an integer)
A
$${{{{\left( {{m_1} + {m_2}} \right)}^2}{n^2}{h^2}} \over {2m_1^2m_2^2{r^2}}}$$
B
$${{{n^2}{h^2}} \over {2\left( {{m_1} + {m_2}} \right){r^2}}}$$
C
$${{2{n^2}{h^2}} \over {\left( {{m_1} + {m_2}} \right){r^2}}}$$
D
$${{\left( {{m_1} + {m_2}} \right){n^2}{h^2}} \over {2{m_1}{m_2}{r^2}}}$$
3
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Truth table for system of four $$NAND$$ gates as shown in figure is: AIEEE 2012 Physics - Semiconductor Question 162 English
A
AIEEE 2012 Physics - Semiconductor Question 162 English Option 1
B
AIEEE 2012 Physics - Semiconductor Question 162 English Option 2
C
AIEEE 2012 Physics - Semiconductor Question 162 English Option 3
D
AIEEE 2012 Physics - Semiconductor Question 162 English Option 4
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
A particle of mass $$m$$ is at rest at the origin at time $$t=0.$$ It is subjected to a force $$F\left( t \right) = {F_0}{e^{ - bt}}$$ in the $$x$$ direction. Its speed $$v(t)$$ is depicted by which of the following curves?
A
AIEEE 2012 Physics - Laws of Motion Question 94 English Option 1
B
AIEEE 2012 Physics - Laws of Motion Question 94 English Option 2
C
AIEEE 2012 Physics - Laws of Motion Question 94 English Option 3
D
AIEEE 2012 Physics - Laws of Motion Question 94 English Option 4
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