1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
In photoelectric emission process from a metal of work function 1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. The corresponding stopping potential is
A
1.8 V
B
1.3 V
C
0.5 V
D
2.3 V
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A current carrying closed loop in the form of a right angle isosceles triangle ABC is placed in uniform magnetic field acting along AB. If the magnetic force on the arm BC is $$\overrightarrow {F,} $$ the force on the arm AC is

AIPMT 2011 Prelims Physics - Moving Charges and Magnetism Question 58 English
A
$$ - \sqrt 2 \,\overrightarrow F $$
B
$$-$$ $$\,\overrightarrow F $$
C
$$\,\overrightarrow F $$
D
$$\sqrt 2 \,\overrightarrow F $$
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The wavelength of the first line of Lyman series for hydrogen atom is equal to that of the second line of Balmer series for a hydrogen like ion. The atomic number Z of hydrogen like ion is
A
3
B
4
C
1
D
2
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The power obtained in a reactor using U235 disintegration is 1000 kW. The mass decay of U235 per hour is
A
10 microgram
B
20 microgram
C
40 microgram
D
1 microgram
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