1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The $$'rad'$$ is the correct unit used to report the measurement of
A
the ability of a beam of gamma ray photons to produce ions in a target
B
the energy delivered by radiation to a target
C
the biological effect of radiation
D
the rate of decay of radioactive source
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The energy spectrum of $$\beta $$-particles [ number $$N(E)$$ as a function of $$\beta $$-energy $$E$$ ] emitted from a radioactive source is
A
AIEEE 2006 Physics - Atoms and Nuclei Question 195 English Option 1
B
AIEEE 2006 Physics - Atoms and Nuclei Question 195 English Option 2
C
AIEEE 2006 Physics - Atoms and Nuclei Question 195 English Option 3
D
AIEEE 2006 Physics - Atoms and Nuclei Question 195 English Option 4
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
If radius of the $$\matrix{ {27} \cr {13} \cr } $$ $$Al$$ nucleus is estimated to be $$3.6$$ fermi then the radius of $$\matrix{ {125} \cr {52} \cr } \,Te$$ nucleus is estimated to be nearly
A
$$8$$ fermi
B
$$6$$ fermi
C
$$5$$ fermi
D
$$4$$ fermi
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Starting with a sample of pure $${}^{66}Cu,{7 \over 8}$$ of it decays into $$Zn$$ in $$15$$ minutes. The corresponding half life is
A
$$15$$ minutes
B
$$10$$ minutes
C
$$7{1 \over 2}$$ minutes
D
$$5$$ minutes
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