Students are advised to practice the NCERT MCQ Questions for Class 11 Physics Chapter 2 Units and Measurements with Answers Pdf free download is available here. MCQ Questions for Class 11 Physics with Answers are prepared as per the Latest Exam Pattern. Students can solve these Units and Measurements Class 11 MCQs Questions with Answers and assess their preparation level.
Units and Measurements Class 11 MCQs Questions with Answers
Solving the Units and Measurements Multiple Choice Questions of Class 11 Physics Chapter 2 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Units and Measurements Class 11 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 2 Physics Class 11 and cross-check your answers during preparation.
Question 1.
Electron volt is a unit of
(a) charge
(b) potential difference
(c) energy
(d) magnetic force
Answer
Answer: (c) energy
Question 2.
Light year is a unit of
(a) time
(b) distance
(c) sunlight intensity
(d) mass
Answer
Answer: (b) distance
Question 3.
Which of the following pairs has the same dimensions?
(a) specific heat and latent heat
(b) lmpulse and momentum
(c) surface tension and force
(d) moment of lnertia and torque
Answer
Answer: (b) lmpulse and momentum
Question 4.
Which of the following sets of quantities has the same dimensional formula?
(a) Frequency, angular frequency and angular momentum
(b) Surface tension, stress and spring constant
(c) Acceleration, momentum and retardation
(d) Work, energy and torque
Answer
Answer: (d) Work, energy and torque
Question 5.
If C and R denote capacitance and resistance respectively, what will be the dimensions of C x R?
(a) [M0L0TA0]
(b) [ML0TA-2]
(c) [ML0TA2]
(d) [MLTA-2]
Answer
Answer: (a) [M0L0TA0]
Question 6.
A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are (The path of the particle makes with the x-axis an angle of
(a) 300
(b) 450
(c) 600
(d) 0
Answer
Answer: (c) 600
Question 7.
Resolution is
(a) a measure of the bias in the instrument
(b) None of these
(c) the smallest amount of input signal change that the instrument can detect reliably
(d) a measure of the systematic errors
Answer
Answer: (d) a measure of the systematic errors
Question 8.
Fundamental or base quantities are arbitrary. In SI system these are
(a) length, force, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(b) length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(c) as length, mass, time, electric charge, thermodynamic temperature, amount of substance, and luminous intensity
(d) length, mass, force, electric current, thermodynamic temperature, amount of substance, and luminous intensity
Answer
Answer: (b) length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
Question 9.
Unit for a fundamental physical quantity is
(a) defined as best of various reference standards
(b) the smallest measurable value of the physical quantity
(c) defined as average various reference standards
(d) reference standard for the physical quantity
Answer
Answer: (d) reference standard for the physical quantity
Question 10.
The volume of a cube in m³ is equal to the surface area of the cube in m². The volume of the cube is
(a) 64 m³
(b) 216 m³
(c) 512 m³
(d) 196 m³
Answer
Answer: (b) 216 m³
Question 11.
In SI system the fundamental units are
(a) meter, kilogram, second, ampere, Kelvin, mole and candela
(b) meter, kilogram, second, coulomb, Kelvin, mole and candela
(c) meter, Newton, second, ampere, Kelvin, mole and candela
(d) meter, kilogram, second, ampere, Kelvin, mole and lux
Answer
Answer: (b) meter, kilogram, second, coulomb, Kelvin, mole and candela
Question 12.
F energy (E), velocity (v) and force (F) are taken as fundamental quantities, what are the dimensions of mass?
(a) Ev2
(b) Ev -2
(c) Fv -1
(d) Fv -2
Answer
Answer: (b) Ev -2
Question 13.
Unit for a fundamental physical quantity is
(a) defined as best of various reference standards
(b) the smallest measurable value of the physical quantity
(c) defined as average various reference standards
(d) reference standard for the physical quantity
Answer
Answer: (d) reference standard for the physical quantity
Question 14.
Fundamental or base quantities are arbitrary. In SI system these are
(a) length, force, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(b) length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(c) as length, mass, time, electric charge, thermodynamic temperature, amount of substance, and luminous intensity
(d) length, mass, force, electric current, thermodynamic temperature, amount of substance, and luminous intensity
Answer
Answer: (b) length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
Question 15.
Physical quantities are
(a) quantities such as degrees, radians and steradians
(b) quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(c) quantities such as pounds, dollars and rupees
(d) quantities such as kilos, pounds and gallons
Answer
Answer: (b) quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
Question 16.
Which of the following units denotes the dimensions [ML2/Q2], where Q represents the electric charge?
(a) Wb/m²
(b) Henry(H)
(c) H/m²
(d) Weber(Wb)
Answer
Answer: (b) Henry(H)
Question 17.
Which of the following sets of quantities has the same dimensional formula?
(a) Frequency, angular frequency and angular momentum
(b) Surface tension, stress and spring constant
(c) Acceleration, momentum and retardation
(d) Work, energy and torque
Answer
Answer: (d) Work, energy and torque
Question 18.
If C and R denote capacitance and resistance respectively, what will be the dimensions of CxR?
(a) [M0L0TA0]
(b) [ML0TA-2]
(c) [ML0TA2]
(d) [MLTA-2]
Answer
Answer: (a) [M0L0TA0]
Question 19.
The volume of a cube in m³ is equal to the surface area of the cube in m². The volume of the cube is
(a) 64 m³
(b) 216 m³
(c) 512 m³
(d) 196 m³
Answer
Answer: (b) 216 m³
Question 20.
Electron volt is a unit of
(a) charge
(b) potential difference
(c) energy
(d) magnetic force
Answer
Answer: (c) energy
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