1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
X(n, $$\alpha $$) $${}_3^7$$Li, then X will be
A
$${}_5^{10}$$ B
B
$${}_5^9$$ B
C
$${}_5^{11}$$ Be
D
$${}_2^4$$ He.
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Half life of a radioactive element is 12.5 hour and its quantity is 256 g. After how much time its quantity will remain 1 g?
A
50 hrs
B
100 hrs
C
150 hrs
D
200 hrs
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
The interplanar distance in a crystal is 2.8 $$ \times $$ 10$$-$$8 m. The value of maximum wavelength which can be diffracted
A
2.8 $$ \times $$ 10$$-$$8 m
B
5.6 $$ \times $$ 10$$-$$8 m
C
1.4 $$ \times $$ 10$$-$$8 m
D
7.6 $$ \times $$ 10$$-$$8 m
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Mn and Mp represent the mass of neutron and proton respectively. An element having mass M has N neutrons and Z protons, then the correct relation will be
A
M < {N $$ \cdot $$ Mn + Z $$ \cdot $$ Mp}
B
M > {N $$ \cdot $$ Mn + Z $$ \cdot $$ Mp}
C
M = {N $$ \cdot $$ Mn + Z $$ \cdot $$ Mp}
D
M = N {Mn + Mp}
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