1
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The binding energy per nucleon of deuteron $$\left( {{}_1^2\,H} \right)$$ and helium nucleus $$\left( {{}_2^4\,He} \right)$$ is $$1.1$$ $$MeV$$ and $$7$$ $$MeV$$ respectively. If two deuteron nuclei react to form a single helium nucleus, then the energy released is
A
$$23.6\,\,MeV$$
B
$$26.9\,\,MeV$$
C
$$13.9\,\,MeV$$
D
$$19.2\,\,MeV$$
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A nucleus disintegrated into two nuclear parts which have their velocities in the ratio of $$2:1.$$ The ratio of their nuclear sizes will be
A
$${3^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}}:1$$
B
$$1:{2^{1/3}}$$
C
$${2^{1/3}}:1$$
D
$$1:{3^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}}$$
3
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which of the following radiations has the least wavelength ?
A
$$\gamma $$ - rays
B
$$\beta $$ - rays
C
$$\alpha $$ - rays
D
$$X$$ - rays
4
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
When a $${U^{238}}$$ nucleus originally at rest, decays by emitting an alpha particle having a speed $$'u',$$ the recoil speed of the residual nucleus is
A
$${{4\mu } \over {238}}$$
B
$$ - {{4\mu } \over {234}}$$
C
$$ {{4\mu } \over {234}}$$
D
$$ - {{4\mu } \over {238}}$$
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