1
AIPMT 2004
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
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The Bohr model of atoms
A
Assumes that the angular momentum of electrons is quantized.
B
Uses Einstein's photoelectric equation.
C
Predicts continuous emission spectra fror atoms.
D
Predicts the same emission spectra for all types of atoms.
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
If in a nuclear fusion process the masses of the fusing nuclei be m1 and m2 and the mass of the resultant nucleus be m3, then
A
m3 = m1 + m2
B
m3 = $$\left| {{m_1} - {m_2}} \right|$$
C
m3 < (m1 + m2)
D
m3 > (m1 + m2)
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In semiconductors at a room temperature
A
the valence band is partially empty and the conduction band is partially filled
B
the valence band is completely filled and the conduction band is partially filled
C
the valence band is completely filled
D
the conduction band is completely empty
EXAM MAP