CBSE Class 11 Physics MCQs Set 8

Refer to CBSE Class 11 Physics MCQs Set 8 provided below. CBSE Class 11 Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Class 11 Physics with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 11 by CBSE, NCERT and KVS. Multiple Choice Questions for All Chapters are an important part of exams for Class 11 Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 11 Physics and also download more latest study material for all subjects

MCQ for Class 11 Physics All Chapters

Class 11 Physics students should refer to the following multiple-choice questions with answers for All Chapters in Class 11. These MCQ questions with answers for Class 11 Physics will come in exams and help you to score good marks

All Chapters MCQ Questions Class 11 Physics with Answers

Question. The error in measuring the radius of a sphere is 2%. Then the error in the measurement of its volume is...
A. 8%
B. 6%
C. 2%
D. 9%
Answer: B

Question. A magician is throwing rings into air in such a way that when a ring is at its maximum height he throws another ring. If the time difference between each throw is 1 sec then the height attained by the ring is...
A. 49 m
B. 49 cm
C. 9.8 m
D. 4.9 m
Answer: D

Question. If the mass and force are doubled then the acceleration will...
A. double
B. become thrice
C. become four time
D. remain same as before
Answer: D

Question. A string is tied to the neck of a bottle containing soda water and then whirled in a vertical circle. The bubbles will be found...
A. near the neck
B. at the bottom
C. at the centre
D. everywhere in the bottle
Answer: A

Question. If the absolute temperature of a gas is doubled, then Vrms will become
A. 2 times
B. √ 2 times
C. 1/2 times
D. 4 times

Answer: B

Question. When the temperature of a black body is lowered to half its original value then the amount of heat radiated will be reduced to...
A. 1/2
B. 1/4
C. 1/
D. 1/16
Answer: D

Question. A shell is fired from a cannon with a velocity V at an angle θ with the horizontal direction. At the highest point in its path it explodes into two pieces of equal mass. One of the pieces retraces its path to the cannon then the speed of the other immediately after the explosion is...
A. 3Vcosθ
B. 2Vcosθ
C. 3/2
D. (√ 3)Vcosθ/2
Answer: A

Question. X-rays have energy of the order of...
A. 10 eV
B. 106 eV
C. infinity
D. zero
Answer: B

Question. In Rutherford model of the atom, the path of an electron will be...
A. a straight line
B. parabolic
C. circular 
D. spiral
Answer: C

Question. A double concave lens of glass, placed in a liquid of refractive index 2, will behave as...
A. diverging lens 
B. concave mirror 
C. converging lens
D. none of the above
Answer: C

Question. Megawattday is the unit of...
A. power
B. force
C. energy
D. density
Answer: C

Question. A particle executes SHM with its frequency f. The frequency with which its kinetic energy oscillates is...
A. f/2
B. f
C. 2f
D. 4f
Answer: C

Question. If the acceleration due to gravity,g, is about 10 m/s2 near the surface of the earth, then at the centre of the earth g would have an approximate value of...
A. zero
B. 5 m/s2
C. 10 m/s
D. 20 m/s2
Answer: A

Question. A tuning fork vibrates at a frequency of f Hz. It is viewed through a stroboscopic disc having four equally spaced slots in it. In order for the vibrating tuning fork to appear stationary, the minimum number of revolutions per second at which the disc should be rotated is...
A. f/8
B. f/4
C. f/2
D. f
Answer: B

Question. Which of the following materials has the greatest relative permittivity?
A. Air
B. Glass
C. Mica
D. Water
Answer: D

Question. The distance between two consecutive antinodes is...
A. λ
B. λ/2
C. λ/3
D. λ/4
Answer: B

Question. For an object below the earth's surface, if the distance of the object from earth's centre is 'd', then the acceleration due to gravity is proportional to...
A. d
B. d2 
C. 1/d
D. 1/d2
Answer: A

Question. A type of process that does not need outside energy to reverse is one that occurs at constant...
A. temperature
B. pressure
C. volume
D. speed
Answer: A

Question. Which of the following combinations of length(l) and cross-sectional area(A) will give a certain volume of copper the least resistance?
A. l and A
B. 2l and A/2
C. l/2 and 2A
D. none
Answer: B

Question. Inside a solenoid, the magnetic field...
A. is zero
B. is uniform
C. increases with distance from the axis
D. decreases with distance from the axis
Answer: C

Question. When the voltage are in phase in an a.c. circuit...
A. impedance is zero
B. reactance is zero
C. resistance is zero
D. phase angle is 90°
Answer: B

Question. The distance between two consecutive bright fringes increases as...
A. the wavelength increases
B. the frequency increases
C. the wavelength decreases
D. the separation of two sources increases
Answer: A

Question. Photoelectric effect can be explained on the basis of...
A. the wave theory of light
B. the theory of relativity
C. the theory of black-body radiation
D. none of the above
Answer: D

Question. Acoustics is the branch of physics studying...
A. light
B. heat
C. sound
D. motion of planets
Answer: C

Question. The prefix 'pico' represents...
A. 10-9
B. 10-12
C. 109
D. 1012
Answer: B

Question. The unit vector in the same direction as(-3i + 4j) is...
A. (-3/5)i + (4/5)j
B. -i + j
C. 3i - 4j
D. (-1/3)i + (1/4)j
Answer: A

Question. An 800-kg car moving at 80 kmph overtakes a 1200-kg car moving at 40 kmph in the same direction. If the two cars stick together,the wreckage has an initial speed of...
A. 8 kmph
B. 40 kmph
C. 56 kmph
D. 60 kmph
Answer: C

Question. For a fixed mass of gas in an isothermal process, the plot of V→(1/p) is...
A. a straight line
B. a parabola
C. a nonparabolic curve
D. a hyperbolic curve
Answer: A

Question. When a vapour condenses into liquid...
A. it absorbs heat
B. it volves heat
C. its temperature rises
D. its temperature falls
Answer: B

Question. For a rectangular glass slab, the entering ray and the emerging ray...
A. are parallel
B. form a right angle
C. form an acute angle
D. form an obtuse angle
Answer: A
 

 

Question. Any motion along a trajectory distinct from a straight line is a motion with...
A. constant velocity
B. changing velocity
C. zero acceleration
D. changing acceleration

Question. An object that has momentum must also have...
A. acceleration
B. impulse
C. kinetic energy
D. potential energy

Question. The dimensions of strain are...
A. ML-1T-2
B. ML-1T-1
C. M0 L-1T-2
D. M0 L0 T0

Question. When the velocity of the molecules is zero, the temperature is...
A. 0°C
B. 273 K
C. -273°C
D. -273 K

Question. The potential energy of a charged capacitor(charge=Q, potential difference=V, capacitance=C) is not represented by...
A. QV/2
B. CV2 /2
C. Q2 /2C
D. CQ2 /2

Question. When light passes from vacuum into a medium A, the value of the constant in Snell's law is...
A. the absolute refractive index of A
B. the absolute refractive index of vacuum
C. 1
D. 0

Question. Sun's distance from the earth is equal to...
A. 1 AU
B. 2 AU
C. 14 AU
D. √ 2 AU

Question. For an object performing SHM, phase angle is the quantity represented by...
A. 2πf
B. 2πft
C. 2πfT
D. 2πf/T

Question. The speed needed to put a satellite in orbit does not depend on...
A. the radius of the orbit
B. the shape of the orbit
C. the value of 'g' at the orbit
D. the mass of the satellite

Question. In an adiabatic process, what does not change is...
A. pressure
B. volume
C. temperature
D. none of the above

Question. Inductance is an opposition to...
A. increasing current
B. decreasing current
C. both increasing current and decreasing current
D. anything but current

Question. The voltage lags behind the current by 1/4 cycle in...
A. a pure capacitor
B. a pure inductor
C. a pure resistor
D. a circuit with capacitance and inductance

Question. If the distance between two slits and the distance between the slits and the screen are constant, then the fringe spacing is proportional to...
A. λ
B. 1/λ
C. √λ
D. 1/√λ

Question. If V0 is the stopping potential, f the frequency of radiation and W0 is the work function of metal, then (V0 + W0) is equal to...
A. hf
B. h/e
C. hf/e
D. f0

Question. The element whose nuclei contain the most tightly bound nucleons is...
A. He
B. C
C. Fe
D. U

Question. An object weighing 0.10 kg is to be swung in a vertical circle of diameter 0.8 m. The minimum velocity needed would be...
A. 2.0 m/s
B. 3.0 m/s
C. 4.0 m/s
D. 2√ 5 m/s

Question. Light is incident upon a rectangular glass block at the polarizing angle. The fraction of light reflected as plane polarized light will be about...
A. zero
B. 10%
C. 50%
D. 100%

Question. A lead bullet at 300 K is fired with the speed of 300 m/s. If the specific heat capacity of lead is 130 J/(kg K), then upon impact its temperature will reach a maximum value of...
A. 636 K
B. 646 K
C. 666 K
D. 676 K

Question. A particle left no tracks in a cloud chamber, did not register on a Geiger-Muller tube and failed to make a zinc sulphide screen glow. It was most likely...
A. an electron
B. a proton
C. a neutron
D. an alpha particle

Question. A fuse is rated at 10 A. In an A.C. circuit, the maximum instantaneous current it could handle would be about...
A. 7 A
B. 10 A
C. 14 A
D. 20 A

Question. 1 micro curie = ______ Bacqueral
A. 3.7 x 1010
B. 3.7 x 107
C. 3.7 x 104
D. 106

Question. A particle of mass m is moving in a circular path of constant radius r such that its centripetal acceleration is given by ac = k2rt2 (k = constant). The power delivered to the particle by the force acting on it is...
A. 2πmk2r2t
B. mk2r2t
C. mk4r2t5/3
D. 0

Question. A ship of mass 3 x 107 kg initially at rest is pulled by a force of 5 x 104 N through a distance of 3 m.
Assuming that the resistance due to water is negligible, the speed of the ship is...
A. 1.5 m/s
B. 60 m/s
C. 0.1 m/s
D. 5 m/s

Question. The buoyancy depends on
A. the depth to which the body is immersed
B. the shape of the body
C. the mass of the body
D. the mass of the liquid displaced

Question. Steam at 100°C is passed into 1.1 kg of water contained in a calorimeter with water equivalent 0.02 kg at 15°C till the temperature of the calorimeter and its content rises to 80°C. The mass of the steam condensed in kg is...
A. 0.130
B. 0.065
C. 0.260
D. 0.135

Question. The sound waves that propagate in a metal bar may be...
A. longitudinal
B. transverse
C. torsional
D. either longitudinal or transverse

Question. The fraction of available volume which is filled in case of hexagonal close-packing structure is...
A. 0.5
B. 0.74
C. 0.32
D. 0.90

Question. A photoelectric cell converts...
A. electrical energy into light energy
B. light energy into electrical energy
C. light energy into sound energy
D. light energy into heat energy.

Question. The sensitiveness of a moving-coil galvanometer can be increased by...
A. increasing the number of turns of the coil
B. decreasing the number of turns of the coil
C. decreasing the area of the coil
D. none of the above

Question. If a star emitting yellow light starts moving towards the earth, its colour as seen from the earth will...
A. turn gradually red
B. turn gradually blue
C. remain yellow
D. turn bright yellow

Chapter 02 Units and Measurement
CBSE Class 11 Physics Units and Measurements MCQs
Chapter 03 Motion in a Straight Line
CBSE Class 11 Physics Motion in a Straight Line MCQs
Chapter 06 Work Energy and Power
CBSE Class 11 Physics Work Energy and Power MCQs
Chapter 07 System of Particles and Rotational Motion
CBSE Class 11 Physics Systems of Particles and Rotational Motion MCQs
Chapter 09 Mechanical Properties of Solids
CBSE Class 11 Physics Mechanical Properties of Solids MCQs
Chapter 10 Mechanical Properties of Fluids
CBSE Class 11 Physics Mechanical Properties of Fluids MCQs
Chapter 11 Thermal Properties of Matter
CBSE Class 11 Physics Thermal Properties of Matter MCQs

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