CSS Physics MCQs 2022
CSS Physics 2022 MCQs – Paper I
Q1: The Curl of the Gradient of a scalar function (∇*∇Φ) is always:
A: A vector
B: Unity
C: A scalar
D: Zero
Q2: A body is rotating with constant angular velocity. Its angular acceleration is:
A: Constant (Non-zero)
B: Maximum
C: Zero
D: Variable
Q3: The moment of inertia of a thin rod of mass M and length L about an axis passing through its center and perpendicular to its length is:
A: ML^2 / 12
B: ML^2 / 3
C: ML^2 / 2
D: ML^2
Q4: If a particle moves in a circle of radius r with constant speed v, its acceleration is directed:
A: Tangent to the circle
B: Towards the center (Radial)
C: Away from the center
D: Perpendicular to the plane
Q5: The work done by the gravitational force over a closed path is:
A: Zero
B: Maximum
C: Minimum
D: Negative
Q6: Bernoulli\'s Principle is a consequence of the conservation of:
A: Mass
B: Momentum
C: Energy
D: Pressure
Q7: The ratio of the speed of escape (v_esc) to the orbital speed (v_orb) near the surface of the earth is:
A: 1
B: √2 (approx 1.414)
C: 2
D: 1/ √2
Q8: The internal energy of a system in an adiabatic process:
A: Remains constant
B: Decreases if work is done by the system (Expansion)
C: Increases if work is done by the system
D: Is zero
Q9: The second law of thermodynamics implies that:
A: Heat flows from cold to hot spontaneously
B: Efficiency of a heat engine is never 100%
C: Energy is conserved
D: Entropy decreases
Q10: The velocity of sound is largest in:
A: Air
B: Water
C: Steel (Solids)
D: Vacuum
Q11: When two waves of same frequency travel in opposite directions, they form:
A: Stationary (Standing) Waves
B: Beats
C: Shock Waves
D: Interference
Q12: The blue color of the sky is due to:
A: Reflection
B: Refraction
C: Rayleigh Scattering
D: Dispersion
Q13: In Young\'s Double Slit Experiment, if the screen is moved away from the slits, the fringe width:
A: Increases
B: Decreases
C: Remains constant
D: Becomes zero
Q14: Resolving power of a microscope increases if the wavelength of light used is:
A: Increased
B: Decreased
C: Kept constant
D: Infinite
Q15: The relativistic kinetic energy is given by:
A: (m - m_0)c^2
B: 1/2 mv^2
C: mc^2
D: m_0c^2
Q16: According to the Theory of Relativity, the length of a rod moving with velocity c relative to an observer is:
A: Infinite
B: Zero
C: L_0
D: Doubled
Q17: Which thermodynamic coordinate is constant in an isochoric process?
A: Temperature
B: Pressure
C: Volume
D: Entropy
Q18: The unit of angular momentum is:
A: Joule-second (J . s)
B: Newton-meter
C: kg . m/s
D: rad/s
Q19: Water flows through a horizontal pipe. At a point where velocity is high, the pressure is:
A: High
B: Low
C: Same
D: Zero
Q20: The dimension of Torque is:
A: [MLT^-1]
B: ML^2T^-2]
C: [MLT^-2]
D: M^0L^0T^0
CSS Physics 2022 MCQs – Paper II
Q1: The electric flux through a closed surface containing no charge is:
A: Infinite
B: Zero
C: Depends on shape
D: ε_0
Q2: The energy stored in a capacitor is given by:
A: CV^2
B: 1/2 CV^2
C: QV
D: 1/2 QC^2
Q3: Lorentz Force is the sum of:
A: Gravitational and Electric force
B: Electric and Magnetic force (F = qE + qv * B)
C: Magnetic and Nuclear force
D: Electric and Drag force
Q4: Two parallel wires carrying current in the same direction:
A: Attract each other
B: Repel each other
C: Do not exert force
D: Rotate
Q5: Faraday\'s Law of Induction states that induced EMF is proportional to:
A: Magnetic Flux
B: Rate of change of Magnetic Flux
C: Current
D: Resistance
Q6: he power factor of a pure resistive circuit is:
A: 0
B: 1
C: 0.5
D: Infinity
Q7: In an AC circuit, resonance occurs when:
A: X_L > X_C
B: X_L < X_C
C: X_L = X_C
D: R = 0
Q8: A rectifier is used to convert:
A: AC to DC
B: DC to AC
C: Low voltage to High
D: Electrical energy to Mechanical
Q9: The ripple factor for a full-wave rectifier is:
A: 1.21
B: 0
C: 0.48
D: 1
Q10: The input resistance of an ideal Op-Amp is:
A: Zero
B: Finite
C: Infinite
D: 1 Ohm
Q11: Which gate is called a \"Universal Gate\"?
A: OR
B: AND
C: NOR (or NAND)
D: NOT
Q12: The photoelectric current depends on:
A: Frequency of incident light
B: Intensity of incident light
C: Work function
D: Temperature
Q13: e Broglie wavelength is given by:
A: λ = h/p
B: λ = p/h
C: λ = h * p
D: λ = E/c
Q14: The uncertainty principle relates position and:
A: Energy
B: Momentum
C: Time
D: Mass
Q15: Binding Energy per nucleon is a measure of:
A: Stability of nucleus
B: Mass of nucleus
C: Size of nucleus
D: Charge of nucleus
Q16: The process responsible for energy production in the Sun is:
A: Fission
B: Fusion of Hydrogen into Helium
C: Radioactive decay
D: Combustion
Q17: Alpha decay reduces the atomic number (Z) of the parent nucleus by:
A: 1
B: 2
C: 3
D: 4
Q18: The unit of radioactivity \"Becquerel\" is equal to:
A: 1 disintegration per second
B: 10^6 disintegrations per second
C: 3.7 * 10^10 disintegrations per second
D: 1 Curie
Q19: An N-type semiconductor is obtained by doping Silicon with:
A: Boron
B: Aluminum
C: Phosphorus (Pentavalent)
D: Carbon
Q20: Which particle acts as a force carrier for the Electromagnetic force?
A: Gluon
B: Photon
C: Graviton
D: W-Boson
