Electricity
Current Electricity
MCQ (Single Correct Answer)
Moving Charges and Magnetism
MCQ (Single Correct Answer)
Magnetism and Matter
MCQ (Single Correct Answer)
Electromagnetic Induction
MCQ (Single Correct Answer)
Electromagnetic Waves
MCQ (Single Correct Answer)
Modern Physics
Semiconductor Electronics
MCQ (Single Correct Answer)
1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A bar magnet is oscillating in the Earth's magnetic field with a period T. What happens to its period and motion if its mass is quadrupled?
A
motion remains simple harmonic with time period = $$T/2$$
B
motion remains S.H.M with time period = 2T
C
motion remains S.H.M with time period = 4T
D
motion remains S.H.M and period remains nearly constant
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
According to Curie's law, the magnetic susceptibility of a substance at an absolute temperature $$T$$ is proportional to
A
$$1/T$$
B
$$T$$
C
$$1/T$$2
D
$$T$$2
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A diamagnetic material in a magnetic field moves
A
from stronger to the weaker parts of the field
B
from weaker to the stronger parts of the field
C
perpendicular to the field
D
in none of the above directions
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is T1. Now the polarity of one of the magnet is reversed then time period of oscillation is T2, then
A
T1 < T2
B
T1 = T2
C
T1 > T2
D
T2 = $$\infty $$
NEET Subjects