CSS Physics MCQs 2023 (Paper I & II) Solved

Q: Two physical quantities having same dimensions are:

Correct Answer: Option C (Pressure and power)

Q: Melting point of Ice _______ when the pressure is increased:

Correct Answer: Option D (Decreases)

Q: Special theory of Relativity treats problems involving:

Correct Answer: Option A (Inertial frame of reference)

Q: The mass of a body on moon is 40kg, what is its weight on earth.

Correct Answer: Option B (392 N)

Q: In which region of earth the weight of a body is slightly greater?

Correct Answer: Option C (Tropic of Cancer or Tropic of Capricorn)

Q: Which of the following does not exhibit polarization?

Correct Answer: Option B (Transverse waves in a gas)

Q: The intensity of a wave is proportional to the square of its:

Correct Answer: Option C (Frequency)

Q: The dimension of coefficient of viscosity i:

Correct Answer: Option B (M-1 L1 T-1)

Q: Surface tension ________:

Correct Answer: Option B (Is also known as capillarity)

Q: From Kepler's law of orbit, we can infer that the sun is located _______ of the planet's orbit.

Correct Answer: Option D (Anywhere along the semi-minor axis)

CSS Physics 2023 MCQs – Paper I

Practice MCQs (20 Questions)

Question 1 of 20

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Question 1 of 20CSS Physics-i MCQs 2023

Two physical quantities having same dimensions are:

AForce and energy

BWork and torque

CPressure and power

DImpulse and momentum

Question 2 of 20CSS Physics-i MCQs 2023

Melting point of Ice _______ when the pressure is increased:

ARemains unchanged

BIncreases

CRises first and then lowers

DDecreases

Question 3 of 20CSS Physics-i MCQs 2023

Special theory of Relativity treats problems involving:

AInertial frame of reference

BNon-inertial frame of reference

CUniform velocity frame of reference

DAccelerated frame of reference

Question 4 of 20CSS Physics-i MCQs 2023

The mass of a body on moon is 40kg, what is its weight on earth.

A240 N

B392 N

C240 N

D400 N

Question 5 of 20CSS Physics-i MCQs 2023

In which region of earth the weight of a body is slightly greater?

AAt Polar region

BAt equator

CTropic of Cancer or Tropic of Capricorn

DNone of these

Question 6 of 20CSS Physics-i MCQs 2023

What is the change in phase if a wave is reflected from a denser medium?

A3π

Cπ

D2π

Question 7 of 20CSS Physics-i MCQs 2023

Which of the following does not exhibit polarization?

ALongitudinal waves in a gas

BTransverse waves in a gas

CMechanical waves

DElectromagnetic waves

Question 8 of 20CSS Physics-i MCQs 2023

The intensity of a wave is proportional to the square of its:

AAmplitude

BTime

CFrequency

DNone of these

Question 9 of 20CSS Physics-i MCQs 2023

The dimension of coefficient of viscosity i:

AM1 L-1 T-1

BM-1 L1 T-1

CM-1 L1 T1

DM-1 L-1 T1

Question 10 of 20CSS Physics-i MCQs 2023

Surface tension ________:

AActs in the plane of the interface normal to any line in the surface

BIs also known as capillarity

CIs a function of the curvature of the interface

DDecreases with fall in temperature

Question 11 of 20CSS Physics-i MCQs 2023

From Kepler's law of orbit, we can infer that the sun is located _______ of the planet's orbit.

AAt the center

BAt one of the foci

CAt Both foci

DAnywhere along the semi-minor axis

Question 12 of 20CSS Physics-i MCQs 2023

What does Kepler's law of period co-relate?

ATime period and semi-minor axis

BTime period and eccentricity

CTime period and semi-major axis

DTime period and are swept by the planet

Question 13 of 20CSS Physics-i MCQs 2023

What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m² when the force acting on the wire is 5N?

A1A

B10A

C100A

D1000A

Question 14 of 20CSS Physics-i MCQs 2023

Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called:

AMagnetic flux

BMagnetic field intensity

CMagnetic induction

DSelf-inductance

Question 15 of 20CSS Physics-i MCQs 2023

The volume of a parallelepiped bounded by Vectors A,B and C can be obtained from the relation:

A(Ax B ).C

B(A.B)x C

C(AxB) x C

DNone of these

Question 16 of 20CSS Physics-i MCQs 2023

If l, m, n are the direction cosines of a position vector a, then which of the following is true?

Al²+m²-n²=0

Blmn=1

Cl²+m²+n²=1

Dl² m²+n²=1

Question 17 of 20CSS Physics-i MCQs 2023

Transverse component of the central force acting on a particle to keep it moving along circular path is:

Amv²r

Bmv²/r

CZero

DConstant

Question 18 of 20CSS Physics-i MCQs 2023

If the velocity of the particle becomes doubled then its K.E:

ABecomes double

BReduces to half

CBecomes four times

DNone of these

Question 19 of 20CSS Physics-i MCQs 2023

When a constant torque is acting on a rotating system, which of the following is constant?

AAngular velocity

BAngular acceleration

CAngular momentum

DNone of these

Question 20 of 20CSS Physics-i MCQs 2023

Fermi-Dirac statistics cannot be applied to:

AElectrons

BPhotons

CFermions

DProtons

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CSS Physics 2023 MCQs – Paper II

Practice MCQs (20 Questions)

Question 1 of 20

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Question 1 of 20CSS Physics-ii MCQs 2023

Charge is distributed uniformly on the surface of a large flat plate. The electric field 2 cm from the plate is:

A120 N/C

B80 N/C

C30 N/C

D15 N/C

Question 2 of 20CSS Physics-ii MCQs 2023

A point particle with charge q is at the center of a Gaussian surface in the form of a cube. The electric flux through any one face of the cube is:

Aqε_0

Bq/4π

Cq/3ε_0

Dq/6ε_0

Question 3 of 20CSS Physics-ii MCQs 2023

A hollow metal sphere is charged to a potential V. The potential at its center is:

C-V

D2V

Question 4 of 20CSS Physics-ii MCQs 2023

If the plate separation of an isolated charged parallel-plate capacitor is doubled:

AThe electric field is doubled

BThe potential difference is doubled

CThe charge on each plate is halved

DNone of these

Question 5 of 20CSS Physics-ii MCQs 2023

A uniform magnetic field is in the positive z direction. A positively charged particle is moving in the positive x direction through the field. The net force on the particle can be made zero by applying an electric field in what direction?

APositive y

BNegative y

CPositive x

DNegative x

Question 6 of 20CSS Physics-ii MCQs 2023

A constant current is sent through a helical coil. The coil:

ATends to get longer

BTends to get shorter

CTends to rotate about its axis

DProduces zero magnetic field at its center

Question 7 of 20CSS Physics-ii MCQs 2023

You push a permanent magnet with its north pole away from you toward a loop of conducting wire in front of you. Before the north pole enters the loop the current in the loop is:

AZero

BClockwise

CCounterclockwise

DTo your left

Question 8 of 20CSS Physics-ii MCQs 2023

An electron traveling with speed v around a circle of radius r is equivalent to a current of:

Aevr/2

Bev/r

Cev/2π r

D2π er/v

Question 9 of 20CSS Physics-ii MCQs 2023

The Fermi energy of a metal depends primarily on:

AThe temperature

BThe volume of the sample

CThe mass density of the metal

DThe number density of conduction electrons

Question 10 of 20CSS Physics-ii MCQs 2023

In an unbiased p-n junction:

AThe electric potential vanishes everywhere

BThe drift current vanishes everywhere

CThe diffusion current vanishes everywhere

DThe diffusion and drift currents cancel each other

Question 11 of 20CSS Physics-ii MCQs 2023

The Fermi-Dirac occupancy probability P(E) varies between:

A0 and 1

B0 and infinity

C1 and infinity

D-1 and 1

Question 12 of 20CSS Physics-ii MCQs 2023

The binding energy per nucleon:

ARemains the same for some fusion events

BIncreases for some, but not all, fusion events

CIncreases for all fusion events

DDecreases for all fusion events

Question 13 of 20CSS Physics-ii MCQs 2023

The sievert is the correct unit to use in reporting the measurement of:

AThe rate of decay of a radioactive source

BThe biological effect of radiation

CThe energy delivered by radiation to a target

DThe ability of a beam of gamma ray photons to produce ions in a target

Question 14 of 20CSS Physics-ii MCQs 2023

Two protons are separated by 10^-10 m. The nuclear (N), electrostatic (E), and gravitational (G) forces between these protons, in order of increasing strength, are:

AE, N, G

BN, G, E

CG, E, N

DG, N, E

Question 15 of 20CSS Physics-ii MCQs 2023

Which of the following particles is stable?

ANeutron

BProton

CPion

DMuon

Question 16 of 20CSS Physics-ii MCQs 2023

Some alpha emitters have longer half-lives than others because:

ATheir decays include the emission of a photon

BTheir alpha particles have less mass

CTheir barriers to decay are higher and wider

DTheir barriers to decay are lower and narrower

Question 17 of 20CSS Physics-ii MCQs 2023

The force exerted on a magnetic dipole as it moves with velocity v through a Stern-Gerlach apparatus is:

AProportional to v

BZero

CIndependent of v

DProportional to v^2

Question 18 of 20CSS Physics-ii MCQs 2023

(Added) Which logic gate output is HIGH only when all inputs are LOW?

ANAND

BNOR

CXOR

DOR

Question 19 of 20CSS Physics-ii MCQs 2023

(Added) In a Transistor (BJT), the region with the moderate doping and largest size is:

AEmitter

BBase

CCollector

DNone of these

Question 20 of 20CSS Physics-ii MCQs 2023

(Added) The wavelength associated with a particle of mass m moving with velocity v is given by:

Amv/h

Bh/mv

Chv/m

Dm/hv

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CSS Physics 2023 MCQs – Paper I

Practice MCQs (20 Questions)

Two physical quantities having same dimensions are:

Melting point of Ice _______ when the pressure is increased:

Special theory of Relativity treats problems involving:

The mass of a body on moon is 40kg, what is its weight on earth.

In which region of earth the weight of a body is slightly greater?

What is the change in phase if a wave is reflected from a denser medium?

Which of the following does not exhibit polarization?

The intensity of a wave is proportional to the square of its:

The dimension of coefficient of viscosity i:

Surface tension ________:

From Kepler's law of orbit, we can infer that the sun is located _______ of the planet's orbit.

What does Kepler's law of period co-relate?

What is the value of the current in a wire of 10cm long at the right angle to a uniform magnetic field of 0.5 Weber/m² when the force acting on the wire is 5N?

Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called:

The volume of a parallelepiped bounded by Vectors A,B and C can be obtained from the relation:

If l, m, n are the direction cosines of a position vector a, then which of the following is true?

Transverse component of the central force acting on a particle to keep it moving along circular path is:

If the velocity of the particle becomes doubled then its K.E:

When a constant torque is acting on a rotating system, which of the following is constant?

Fermi-Dirac statistics cannot be applied to:

Practice Test Completed!

CSS Physics 2023 MCQs – Paper II

Practice MCQs (20 Questions)

Charge is distributed uniformly on the surface of a large flat plate. The electric field 2 cm from the plate is:

A point particle with charge q is at the center of a Gaussian surface in the form of a cube. The electric flux through any one face of the cube is:

A hollow metal sphere is charged to a potential V. The potential at its center is:

If the plate separation of an isolated charged parallel-plate capacitor is doubled:

A uniform magnetic field is in the positive z direction. A positively charged particle is moving in the positive x direction through the field. The net force on the particle can be made zero by applying an electric field in what direction?

A constant current is sent through a helical coil. The coil:

You push a permanent magnet with its north pole away from you toward a loop of conducting wire in front of you. Before the north pole enters the loop the current in the loop is:

An electron traveling with speed v around a circle of radius r is equivalent to a current of:

The Fermi energy of a metal depends primarily on:

In an unbiased p-n junction:

The Fermi-Dirac occupancy probability P(E) varies between:

The binding energy per nucleon:

The sievert is the correct unit to use in reporting the measurement of:

Two protons are separated by 10^-10 m. The nuclear (N), electrostatic (E), and gravitational (G) forces between these protons, in order of increasing strength, are:

Which of the following particles is stable?

Some alpha emitters have longer half-lives than others because:

The force exerted on a magnetic dipole as it moves with velocity v through a Stern-Gerlach apparatus is:

(Added) Which logic gate output is HIGH only when all inputs are LOW?

(Added) In a Transistor (BJT), the region with the moderate doping and largest size is:

(Added) The wavelength associated with a particle of mass m moving with velocity v is given by:

Practice Test Completed!

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