1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The diagram shows the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy? AIEEE 2005 Physics - Atoms and Nuclei Question 204 English
A
$$iv$$
B
$$iii$$
C
$$ii$$
D
$$i$$
2
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
$$19.2\,\,MeV$$
3
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
$$1:{3^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}}$$
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
An $$\alpha $$-particle of energy $$5$$ $$MeV$$ is scattered through $${180^ \circ }$$ by a fixed uranium nucleus. The distance of closest approach is of the order of
A
$${10^{ - 12}}\,cm$$
B
$${10^{ - 10}}\,cm$$
C
$$1A$$
D
$${10^{ - 15a}}\,cm$$
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