660+ A Level Physics Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .

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51.	Liquid A and liquid B exert same amount of pressure on each other, but the density of A is twice the density of B. The height of liquid B is 10 cm, then the height of liquid A would be
A.	5 cm
B.	10 cm
C.	20 cm
D.	40 cm
Answer» A. 5 cm

discuss

52.	Incorrect statement for co-efficient of friction could be that
A.	The coefficient of friction is denoted by the Greek letter µ.
B.	The coefficient of friction is directly proportional to the force of friction
C.	The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure
D.	The coefficient of friction is inversely proportional to the force pressing the surfaces together
Answer» C. The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

discuss

53.	If we move a positive charge to a positive plate, then potential energy of charge is
A.	decreased
B.	increased
C.	remains constant
D.	dissipated
Answer» B. increased

discuss

54.	An instrument commonly used for the measurement of atmospheric pressure is known as
A.	Manometer
B.	Barometer
C.	Calorimeter
D.	Potentiometer
Answer» B. Barometer

discuss

55.	Phase difference between a node and an antinode is
A.	90°
B.	45°
C.	180°
D.	360°
Answer» C. 180°

discuss

56.	Our weight, as measured by the spring weighing machine is equivalent of
A.	The total gravitational force that Earth exerts on us
B.	The total centripetal force required to keep us moving on Earth's axis
C.	The total gravitational force that Earth exerts on us + The total centripetal force required to keep us moving on Earth's axis
D.	The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis
Answer» D. The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

discuss

57.	Point where spring oscillates with maximum amplitude is called
A.	node
B.	antinode
C.	fixed end
D.	movable end
Answer» B. antinode

discuss

58.	According to Newton's law of universal gravitation, any two particles of finite mass attract one another with a force which is
A.	Inversely proportional to the product of their masses and directly proportional to the square of their distance apart
B.	Inversely proportional to the product of their masses and directly proportional to their distance apart
C.	Directly proportional to the product of their masses and inversely proportional to their distance apart
D.	Directly proportional to the product of their masses and inversely proportional to the square of their distance apart
Answer» D. Directly proportional to the product of their masses and inversely proportional to the square of their distance apart

discuss

59.	Correct example of vector quantities could be
A.	Distance and Speed
B.	Displacement and Velocity
C.	Distance and Displacement
D.	Speed and Velocity
Answer» B. Displacement and Velocity

discuss

60.	In a stationary wave, nodes are at
A.	fixed points
B.	movable points
C.	there are no nodes
D.	random points
Answer» A. fixed points

discuss

61.	In the formation of stationary waves, at T⁄2 the waves are
A.	out of phase
B.	in phase
C.	diminished
D.	twice the amplitude
Answer» B. in phase

discuss

62.	A vector quantity is one which has
A.	direction as well as magnitude
B.	magnitude only
C.	direction only
D.	no direction, no magnitude
Answer» A. direction as well as magnitude

discuss

63.	Centripetal force is dependent on three factors, the odd one out of these factors is
A.	Mass of the rotating object
B.	Speed of the rotating object
C.	Volume of the rotating object
D.	Path radius
Answer» C. Volume of the rotating object

discuss

64.	Graph of potential energy against distance is
A.	curve
B.	parabolic
C.	hyperbolic
D.	straight line
Answer» D. straight line

discuss

65.	On all instruments like measuring cylinder, pipette and burette, readings are always taken at the bottom of the meniscus of liquid. This is not true for liquids like
A.	Oil
B.	Ink
C.	Mercury
D.	Seawater
Answer» C. Mercury

discuss

66.	In a weather map, lines joining all those regions with same atmospheric pressure are called
A.	Bars
B.	Millibars
C.	Isobars
D.	Atmospheric bars
Answer» C. Isobars

discuss

67.	For a given system, the minimum frequency of a standing wave is in a
A.	fundamental mode
B.	lowest mode
C.	highest mode
D.	peak mode
Answer» A. fundamental mode

discuss

68.	In an electric field, energy per unit positive charge is
A.	voltage
B.	current
C.	frequency
D.	resistance
Answer» A. voltage

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69.	In Kundt's dust tube, dust accumulates at
A.	nodes
B.	antinodes
C.	at the end
D.	at troughs only
Answer» A. nodes

discuss

70.	A node having twice the frequency of the fundamental is called
A.	half harmonic
B.	harmonic
C.	double harmonic
D.	triple harmonic
Answer» B. harmonic

discuss

71.	If frequency of certain wave is f, then it's velocity is {{}}
A.	v = fλ
B.	v = T⁄λ
C.	T2
D.	1⁄T2
Answer» A. v = fλ

discuss

72.	Origin of gravitational field is
A.	charges
B.	masses
C.	Earth's core
D.	matter
Answer» B. masses

discuss

73.	At separation between a node and antinode, wavelength becomes
A.	λ
B.	λ⁄2
C.	λ⁄4
D.	2λ
Answer» C. λ⁄4

discuss

74.	If the plates of capacitor are oppositely charged then the total charge is equal to
A.	negative
B.	positive
C.	zero
D.	infinite
Answer» C. zero

discuss

75.	Area under current-time graph represents
A.	magnitude of charge
B.	dielectric
C.	amount of positive charge
D.	amount of negative charge
Answer» A. magnitude of charge

discuss

76.	If charge stored on plates of capacitor is large, then capacitance will be
A.	small
B.	large
C.	zero
D.	infinite
Answer» B. large

discuss

77.	insulator which is placed between 2 plates of capacitor is
A.	electric
B.	dielectric
C.	inductor
D.	resistor
Answer» B. dielectric

discuss

78.	Combined capacitance is equal to the
A.	sum of all capacitance of capacitors
B.	product of all the capacitance
C.	difference between the capacitors
D.	average capacitance of capacitors
Answer» A. sum of all capacitance of capacitors

discuss

79.	capacitance and charge on plates are
A.	inversely related
B.	directly related
C.	not related at all
D.	always equal
Answer» B. directly related

discuss

80.	If the capacitors are connected in parallel, then the potential difference across each capacitor is
A.	same
B.	different
C.	zero
D.	infinite
Answer» A. same

discuss

81.	Total capacitance of 300 mF capacitor and a 600 mF in series is
A.	300 mF
B.	500 mF
C.	200 mF
D.	1000 mF
Answer» C. 200 mF

discuss

82.	Work done in charging a capacitor is given by
A.	(1⁄2)QV
B.	2QV
C.	QV
D.	2V
Answer» A. (1⁄2)QV

discuss

83.	Device used to store energy in electrical circuits is
A.	resistor
B.	inductor
C.	capacitor
D.	diode
Answer» C. capacitor

discuss

84.	Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V is
A.	0.12 J
B.	1.3 J
C.	0.10 J
D.	3 J
Answer» C. 0.10 J

discuss

85.	Capacitor is fully charged if potential difference is equal to
A.	e.m.f
B.	current
C.	resistance
D.	power
Answer» A. e.m.f

discuss

86.	An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of $$$8*10^{6} \: ms ^{-1}$$$ , the radius of the circular path followed by an electron is
A.	3.8 cm
B.	3.7 cm
C.	3.6 cm
D.	3.5 cm
Answer» A. 3.8 cm

discuss

87.	Hall voltage is directly proportional to
A.	current
B.	electric field
C.	magnetic flux density
D.	all of above
Answer» C. magnetic flux density

discuss

88.	Force due to magnetic field and velocity is
A.	at right angles to each other
B.	at acute angles with each other
C.	at obtuse angle with each other
D.	antiparallel to each other
Answer» A. at right angles to each other

discuss

89.	Force on a moving charge in a uniform magnetic field depends upon
A.	magnetic flux density
B.	the charge on the particle
C.	the speed of particle
D.	all of above
Answer» D. all of above

discuss

90.	Electric field strength related to hall voltage is given by
A.	VHd
B.	VH⁄d
C.	VHE
D.	Ed
Answer» B. VH⁄d

discuss

91.	Hall probe is made up of
A.	metals
B.	non metals
C.	semiconductor
D.	radioactive material
Answer» C. semiconductor

discuss

92.	For an electron, magnitude of force on it is
A.	BeV
B.	eV
C.	Be
D.	BV
Answer» A. BeV

discuss

93.	When current is parallel to magnetic fields, force on conductor is
A.	zero
B.	infinite
C.	2 times
D.	same
Answer» A. zero

discuss

94.	Direction of conventional current is
A.	direction of neutron flow
B.	direction of electron flow
C.	direction of flow of positive charge
D.	same as that of electric current
Answer» C. direction of flow of positive charge

discuss

95.	According to the equation ‘r =(mv)⁄(Be)’, the faster moving particles
A.	move in smaller circle
B.	move straight
C.	move in bigger circle
D.	move randomly
Answer» C. move in bigger circle

discuss

96.	In Hall effect, voltage across probe is known as
A.	hall voltage
B.	e.m.f
C.	potential difference
D.	hall potential
Answer» A. hall voltage

discuss

97.	Angle through which an object has moved is called it's
A.	linear displacement
B.	linear distance
C.	angular displacement
D.	angular distance
Answer» C. angular displacement

discuss

98.	Angular velocity of second hand of clock is 0.105 rad s-1 and length of hand is 1.8 cm, then speed of tip of hand is {{}}
A.	0.189 cm s-1
B.	1 cm s-1
C.	0.189 m s-1
D.	2 m s-1
Answer» A. 0.189 cm s-1

discuss

99.	Object moving along a circular path is
A.	in equilibrium
B.	not in equilibrium
C.	not moving with constant speed
D.	in random motion
Answer» B. not in equilibrium

discuss

100.	At the fairground, the force that balances out our weight is
A.	centripetal force
B.	centrifugal force
C.	friction
D.	gravitational force
Answer» C. friction

discuss

660+ A Level Physics Solved MCQs

Liquid A and liquid B exert same amount of pressure on each other, but the density of A is twice the density of B. The height of liquid B is 10 cm, then the height of liquid A would be

Incorrect statement for co-efficient of friction could be that

If we move a positive charge to a positive plate, then potential energy of charge is

An instrument commonly used for the measurement of atmospheric pressure is known as

Phase difference between a node and an antinode is

Our weight, as measured by the spring weighing machine is equivalent of

Point where spring oscillates with maximum amplitude is called

According to Newton's law of universal gravitation, any two particles of finite mass attract one another with a force which is

Correct example of vector quantities could be

In a stationary wave, nodes are at

In the formation of stationary waves, at T⁄2 the waves are

A vector quantity is one which has

Centripetal force is dependent on three factors, the odd one out of these factors is

Graph of potential energy against distance is

On all instruments like measuring cylinder, pipette and burette, readings are always taken at the bottom of the meniscus of liquid. This is not true for liquids like

In a weather map, lines joining all those regions with same atmospheric pressure are called

For a given system, the minimum frequency of a standing wave is in a

In an electric field, energy per unit positive charge is

In Kundt's dust tube, dust accumulates at

A node having twice the frequency of the fundamental is called

If frequency of certain wave is f, then it's velocity is {{}}

Origin of gravitational field is

At separation between a node and antinode, wavelength becomes

If the plates of capacitor are oppositely charged then the total charge is equal to

Area under current-time graph represents

If charge stored on plates of capacitor is large, then capacitance will be

insulator which is placed between 2 plates of capacitor is

Combined capacitance is equal to the

capacitance and charge on plates are

If the capacitors are connected in parallel, then the potential difference across each capacitor is

Total capacitance of 300 mF capacitor and a 600 mF in series is

Work done in charging a capacitor is given by

Device used to store energy in electrical circuits is

Energy stored in a 2000 mF capacitor charged to a potential difference of 10 V is

Capacitor is fully charged if potential difference is equal to

An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of $$$8*10^{6} \: ms ^{-1}$$$ , the radius of the circular path followed by an electron is

Hall voltage is directly proportional to

Force due to magnetic field and velocity is

Force on a moving charge in a uniform magnetic field depends upon

Electric field strength related to hall voltage is given by

Hall probe is made up of

For an electron, magnitude of force on it is

When current is parallel to magnetic fields, force on conductor is

Direction of conventional current is

According to the equation ‘r =(mv)⁄(Be)’, the faster moving particles

In Hall effect, voltage across probe is known as

Angle through which an object has moved is called it's

Angular velocity of second hand of clock is 0.105 rad s-1 and length of hand is 1.8 cm, then speed of tip of hand is {{}}

Object moving along a circular path is

At the fairground, the force that balances out our weight is