1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The ionization energy of the electron in the hydrogen atom in its ground state is 13.6 eV. The atoms are excited to higher energy levels to emit radiations of 6 wavelengths, Maximum wavelength of emitted radiation corresponds to the transition between
A
n = 3 to n = 1 states
B
n = 2 to n = 1 states
C
n = 4 to n = 3 states
D
n = 3 to n = 2 states
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an
A
isomer of parent
B
isotone of parent
C
isotope of parent
D
isobar of parent
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
If M(A; Z), Mp and Mn denote the masses of the nucleus $${}_Z^AX,$$ proton and neutron respectively in units of u (1 u = 931.5 MeV/c2) and BE represents its bonding energy in MeV, then
A
M(A, Z) = ZMp + (A $$-$$ Z)Mn $$-$$ BE
B
M(A, Z) = ZMp + (A $$-$$ Z)Mn + BE/c2
C
M(A, Z) = ZMp + (A $$-$$ Z)Mn $$-$$ BE/c2
D
M(A, Z) = ZMp + (A $$-$$ Z)Mn + BE
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Two nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be
A
$${\left( 3 \right)^{1/3}}:1$$
B
1 : 1
C
1 : 3
D
3 : 1
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