Magnetism and Matter MCQ Questions Class 12 Physics Chapter 5
NCERT MCQ Questions for Class 12 Physics Chapter 5 Magnetism and Matter. Magnetism and Matter MCQ Questions with Answers from Class 12 Physics.
Magnetism and Matter MCQ Questions Class 12 Physics Chapter 5
Magnetism and Matter Multiple Choice Questions with Answers Class 12 Physics Chapter 5 PDF is available.
1) The earth behaves as a ______ with the magnetic field pointing approximately from the geographic south to the north.
a) Electromagnet
b) Magnet
c) Both a and b
d) None
Ans: b) magnet
2) When a bar magnet is freely suspended it points in the _____
a) South -north direction
b) East-west direction
c) North-south direction
d) None
Ans: c) north- south direction
3) The tip which points to the geographic north is called as
a) South pole
b) North pole
c) East pole
d) West pole
Ans: b) north pole
4) The tip which points to the geographic south is called as
a) North pole
b) South pole
c) Both a and b
d) None
Ans: b) South pole
5) There is a _____ when north poles of two magnets are brought closed together.
a) Attractive force
b) Repulsive force
c) Both a and b
d) None
Ans: b) repulsive force
6) There is a _____ when north pole of one magnet is brought near to the south pole of the another magnet.
a) Repulsive force
b) Attractive force
c) Both a and b
d) None
Ans: b) attractive force
7) We ______ isolate the south and north pole of a magnet.
a) Can
b) Cannot
c) May
d) None
Ans: b) cannot
8) If a bar magnet is broken into two halves we get the two similar bar magnets with somewhat
a) Same properties
b) Stronger properties
c) Weaker properties
d) None
Ans: c) weaker properties
9) The magnetic field lines of a magnet forms
a) Continuous open loops
b) Continuous closed loops
c) Both a and b
d) None
Ans: b) continuous closed loops
10) The magnetic field lines starts from ____ ____ and ends on the _____.
a) Negative charge, positive charge
b) Positive charge, negative charge
c) Positive charge, escape to infinity
d) Both b and c
Ans: d) both b and c
11) The tangent at the field line at a given point represent the direction of the
a) Magnetic field at that point
b) Net magnetic field at that point
c) Net electric filed at that point
d) None
Ans: b) net magnetic field at that point
12) The larger the number of field lines crossing per unit area, _____ is the magnitude of the magnetic field.
a) Weaker
b) Stronger
c) Both a and b
d) None
Ans: b) stronger
13) The magnetic field lines
a) Intersect each other
b) Never intersect each other
c) Both a and b
d) None
Ans: b) never intersect each other
14) Magnetic monopoles
a) Exist
b) Do not exist
c) Both a and b
d) None
Ans: b) do not exist
15) The net magnetic flux through any closed surface is
a) Unity
b) Infinity
c) Zero
d) None
Ans: c) zero
16) The net magnetic flux through any closed surface is zero, this is the
a) Ampere’s law
b) Gauss’s law
c) Coulomb’s law
d) None
Ans: b) Gauss’s law
17) The pole near the geographic north pole of the earth is called as
a) South magnetic pole
b) North magnetic pole
c) West magnetic pole
d) East magnetic pole
Ans: b) north magnetic pole
18) The pole near the geographic south of the earth is called as
a) South magnetic pole
b) North magnetic pole
c) West magnetic pole
d) None
Ans: a) south magnetic pole
19) The vertical plane containing the longitudinal circle and axis of the rotation of earth is called as
a) Geographic meridian
b) Magnetic meridian
c) Both a and b
d) None
Ans: a) geographic meridian
20) The vertical plane which passes through the imaginary line joining the magnetic north and south poles is called as
a) Geographic meridian
b) Magnetic meridian
c) Both a and b
d) None
Ans: b) magnetic meridian
21) The angle made by magnetic meridian at point with the geographic meridian is called as
a) Magnetic declination
b) Simply declination
c) Both a and b
d) None
Ans: c) both a and b
22) The declination is _____ at higher latitudes and _____ near the equator.
a) Smaller, greater
b) Greater, smaller
c) Constant, constant
d) None
Ans: b) greater, smaller
23) The net magnetic moment per unit volume is called as
a) Magnetism
b) Magnetisation
c) Magnetic flux
d) None
Ans: b) magnetisation
24) The magnetisation is the
a) Scalar quantity
b) Vector quantity
c) Tensor quantity
d) None
Ans: b) Vector quantity
25) The dimensions of magnetisation are
a) [L A]
b) [L-1 A]
c) [L-2 A]
d) None
Ans: b) [L-1 A]
26) The SI unit of magnetisation is
a) Am
b) A/m
c) A/m3
d) None
Ans: b) A/m
27) The measure of how a magnetic material responds to an external field is called as
a) Magnetisation
b) Magnetic flux
c) Magnetic moment
d) Magnetic susceptibility
Ans: d) magnetic susceptibility
28) The magnetic susceptibility is the
a) Dimensional quantity
b) Dimensionless quantity
c) Both a and b
d) None
Ans: b) dimensionless quantity
29) The materials with magnetic susceptibility positive and small are called as
a) Paramagnetic
b) Diamagnetic
c) Ferromagnetic
d) None
Ans: a) paramagnetic
30) The materials with magnetic susceptibility negative and small are called as
a) Paramagnetic
b) Diamagnetic
c) Ferromagnetic
d) None
Ans: b) diamagnetic
31) Paramagnetic materials are the materials having magnetic susceptibility as
a) Small, negative
b) Large, positive
c) Small, positive
d) None
Ans: c) small, positive
32) Diamagnetic materials are the materials having magnetic susceptibility as
a) Small, negative
b) Small, positive
c) Large, negative
d) None
Ans: a) small, negative
33) Diamagnetic substances are those which are having tendency to move from ____ to the _____ part of the external magnetic field.
a) Weaker , stronger
b) Stronger, weaker
c) Both a and b
d) None
Ans: b) stronger, weaker
34) The substances which are having tendency to move from stronger part to weaker part of the external magnetic field are called as
a) Paramagnetic materials
b) Diamagnetic materials
c) Ferromagnetic material
d) None
Ans: b) diamagnetic materials
35) Magnets _____ the diamagnetic materials
a) Attracts
b) Repels
c) Both a and b
d) None
Ans: b) repels
- In case you have missed:- Previous Chapter MCQ Questions
36) In case of diamagnetic materials, the resultant magnetic moment in an atom is
a) Uniform
b) Non uniform
c) Infinity
d) Zero
Ans: d) zero
37) Which of the following are the diamagnetic materials
a) Bismuth
b) Copper
c) Lead
d) All
Ans: d) all
38) The most exotic diamagnetic materials are
a) Semiconductors
b) Superconductors
c) Conductors
d) Insulators
Ans: b) superconductors
39) Superconductors are the materials which exhibits
a) Perfect conductivity
b) Perfect diamagnetism
c) Both a and b
d) None
Ans: c) both a and b
40) The magnetic susceptibility for superconducting materials is
a) 1
b) -1
c) 0
d) Infinity
Ans: b) -1
41) The phenomenon of perfect diamagnetism in superconductors is called as
a) Superconducting effect
b) Meissner effect
c) Magnetic effect
d) None
Ans: b) Meissner effect
42) The substances which get weakly magnetised when placed in an external magnetic field are called as
a) Paramagnetic materials
b) Diamagnetic materials
c) Superconducting materials
d) None
Ans: a) paramagnetic materials
43) Paramagnetic materials are those which are _____ magnetised when placed in an external magnetic field.
a) Strongly
b) Weakly
c) Uniformly
d) None
Ans: b) weakly
44) The materials which are get ____ attracted by the magnet are called as paramagnetic materials.
a) Weakly
b) Strongly
c) Uniformly
d) None
Ans: a) weakly
45) The magnetic substances which moves from weak magnetic field to strong magnetic field are called as
a) Diamagnetic materials
b) Paramagnetic materials
c) Both a and b
d) None
Ans: b) paramagnetic materials
46) Which of the following are paramagnetic materials
a) Aluminium
b) Sodium
c) Calcium
d) All
Ans: d) all
47) The magnetisation is _____ promotional to the absolute temperature in case of paramagnetic materials.
a) Directly
b) Inversely
c) Both a and b
d) None
Ans: b) inversely
48) In case of paramagnetic materials, the magnetisation is inversely proportional to
a) Magnetic field
b) Electric field
c) Absolute temperature
d) None
Ans: c) absolute temperature
49) The materials in which magnetisation is inversely proportional to absolute temperature are called as
a) Paramagnetic materials
b) Diamagnetic materials
c) Ferromagnetic material
d) Both a and b
Ans: a) paramagnetic materials
50) The magnetic susceptibility of a paramagnetic materials is inversely proportional to absolute temperature is called as
a) Meissner effect
b) Gauss’s law
c) Ampere’s law
d) Curie’s law
Ans: d) Curie’s law
51) The substances which are strongly magnetised when placed in an external magnetic field are called as
a) Paramagnetic materials
b) Diamagnetic materials
c) Ferromagnetic material
d) None
Ans: c) ferromagnetic material
52) Ferromagnetic material are those which are _____ magnetised when placed in an external magnetic field
a) Weakly
b) Strongly
c) Uniformly
d) None
Ans: b) strongly
53) The ferromagnetic material have strong tendency to move from a region of ____ magnetic field to _____ magnetic field.
a) Strong, weak
b) Weak, strong
c) Both a and b
d) None
Ans: b) weak, strong
54) The materials which have strong tendency to move from a region of weak magnetic field to strong magnetic field are called as
a) Diamagnetic materials
b) Paramagnetic materials
c) Ferromagnetic material
d) None
Ans: c) ferromagnetic material
55) The materials which get strongly attracted by the magnet are called as
a) Paramagnetic materials
b) Diamagnetic materials
c) Ferromagnetic material
d) None
Ans: c) ferromagnetic material
56) Ferromagnetic material are those which get ___ attracted by the magnet.
a) Weakly
b) Strongly
c) Uniformly
d) None
Ans: b) strongly
57) The ferromagnetic material in which magnetisation persists are called as
a) Soft ferromagnets
b) Hard ferromagnets
c) Both a and b
d) None
Ans: b) hard ferromagnets
58) Alnico is the
a) Hard ferromagnets
b) Soft ferromagnets
c) Ferromagnets
d) Paramagnet
Ans: a) hard ferromagnets
59) The ferromagnetic material which loses magnetisation after removal of the external magnetic field are called as
a) Soft ferromagnets
b) Hard ferromagnets
c) Paramagnetic materials
d) Diamagnetic materials
Ans: a) soft ferromagnets
60) Soft iron is the
a) Hard ferromagnets
b) Soft ferromagnets
c) Paramagnet
d) Diamagnets
Ans: b) soft ferromagnets
61) The temperature at which ferromagnetic material is converted into paramagnetic are called as
a) Ferries temperature
b) Neil temperature
c) Curie temperature
d) None
Ans: c) curie temperature
62) The value of B at H= 0 is called as
a) Retentivity
b) Remanence
c) Both a and b
d) None
Ans: c) both a and b
63) The word hysterisismeans
a) Lagging behind
b) Lagging ahead
c) Both a and b
d) Remains in same state
Ans: a) lagging behind
64) The substances which retain their ferromagnetic property for a long period of time are called as
a) Temporary magnets
b) Soft magnets
c) Hard magnets
d) Permanent magnets
Ans: d) permanent magnet
65) The relative permeability and magnetic susceptibility are related as
a) Relative permeability = 1+ magnetic susceptibility
b) Relative permeability = 1- magnetic susceptibility
c) Magnetic susceptibility = relative permeability – 1
d) Both a and c
Ans: d) both a and c
66) Magnetic flux is the
a) Scalar quantity
b) Vector quantity
c) Tensor quantity
d) None
Ans: a) scalar quantity
67) Magnetic susceptibility is the
a) Scalar
b) Vector
c) Tensor
d) None
Ans: a) scalar
68) Relative magnetic permeability and magnetic permeability are
a) Scalar
b) Vector
c) Tensor
d) Both a and b
Ans: a) scalar
69) The magnetic susceptibility for diamagnetic materials is about
a) +10-5
b) -10-5
c) -10-6
d) +10-6
Ans: b) -10-5
70) For paramagnetic materials the magnetic susceptibility is
a) +10-5
b) -10-5
c) -10-6
d) +105
Ans: a) +10-5
71) For superconductors nor perfect diamagnetic
a) Magnetic susceptibility = -1
b) Relative magnetic permeability = 0
c) Magnetic permeability = 0
d) All
Ans: d) all
72) The magnetic permeability is measured in
a) N/A
b) N/A2
c) NA2
d) NA
Ans: b) N/A2
- In case you have missed:- Next Chapter MCQ Questions
