1st Year Physics Chapter One MEASUREMENTS MCQs Quiz Test

If you are looking Chapter Wise MCQs question answers for 1st Year Physics. You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

Physics Chapter 1 MCQs Quiz Test

On this website you will learn first Year Physics Unit One Measurement MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs.

Important Key Points You Will Learn in Chapter One:

• Physics
• Physical Quantities
• International System of Units
• Errors and Uncertainties
• Significant Figures
• Precision and Accuracy
• Dimensions of Physical Quantities

First Year Physics Chapter 01 Measurements Solved MCQs Quiz Test

Q.1: Which one is not a branch of physical sciences?

1. Chemistry
2. Astronomy
3. Geology
4. Biology

D

Q.2: The dimension of energy density is the same as that of?

1. Pressure
2. Force
3. (Velocity)²
4. Acceleration

A

Q.3: Which property of a solid object cannot be changed by the application of force?

1. Length
2. Mass
3. Area
4. Speed

B

Q.4: For what physical quantity is the pascal a unit?

1. Stress
2. Pressure
3. Young’s modulus
4. All of these

D

Q.5: In scientific notation, numbers are expressed in?

1. Power of ten
2. Powers of two
3. Reciprocal
4. Decimal

B

Q.6: 1024 can be written in scientific notation as?

1. 1.024 x 10³
2. 2¹⁰
3. 0.000976
4. 1/0.00097

A

Q.7: Prefix deca represents?

1. 10¹
2. 10²
3. 10³
4. 10^-1

A

Q.8: The error in measurement may occur due to?

1. Inexperience of a person
2. The faulty apparatus
3. Inappropriate method
4. Due to all reasons in a, b and c

D

Q.9: The uncertainty in measurement may occur due to?

1. Limitation of an instrument
2. Natural variation of the object to be measured
3. Inadequate of technique
4. All given in a, b and c

D

Q.10: Random error can be reduced by?

1. Taking zero correction
2. Comparing the instrument with another more accurate one
3. Taking mean of several measurements
4. All methods explain in a, b and c

C

Q.11: In any measurement the significant figures are?

1. All accurately known and all doubtful digits
2. Only accurately known digits
3. Only doubtful digits
4. All accurately known digits and the first doubtful

D

Q.12: A digit zero in a measurement?

1. May be significant may not significant
2. Always significant
3. Always insignificant
4. Significant only if left to a significant figure

A

Q.13: The number of significant figures in 0.0173 are?

1. Three
2. Four
3. Five
4. Two

A

Q.14: Smaller the least count of the instrument more is the measurement?

1. Accurate
2. Precise
3. Accurate and Precise
4. None of these

B

Q.15: Which system of the units is a coherent system of units in mechanics?

1. CGS
2. MKS
3. FPS
4. All of these

D

Q.16: ML^-1T^-2 is the dimension of?

1. Force
2. Pressure
3. Momentum
4. Energy

B

Q.17: Dimensional analysis is helpful for?

1. Deriving a possible formula
2. Checking the homogeneity of a physical equation
3. Verification of laws
4. Only a and b are correct

D

Q.18: Which equation is not dimensionally correct?

1. E=mc²
2. Vf=Vi+at
3. S=Vt²
4. S=1/2 at²

C

Q.19: SI unit of coefficient of viscosity is?

1. kg.m.s^-1
2. kg.m^-1.s^-1
3. kg.m.s
4. kg^-1m^-1s^-1

B

Q.20: Three students measured length of needle with meter rod and recorded as: (i) 0.2145m (ii) 0.21m (iii) 0.214m. Which one is a correct record?

1. Only (i)
2. Only (ii)
3. Only (iii)
4. Both (i) and (ii)

C

Q.21: One light-year is equal to?

1. 9.5×10¹⁵m
2. 9.5×10¹⁵sec
3. 9.5×10¹⁵km
4. 9.5×10¹⁵cm

A

Q.22: Absolute uncertainty in a measurement depends upon?

1. The magnitude of the measurement
2. Least count of the instrument
3. The percentage error in the measurement
4. System of unit

B

Q.23: Steradian is the SI unit of?

1. Plane angle
2. Solid angle
3. Both plane angle and solid angle
4. Neither plane angle nor solid angle

B

Q.24: Which pair has the same dimension?

1. work, torque
2. Work, energy
3. Energy, torque
4. All are correct

D

Q.25: Total uncertainty, in the result obtained from the subtraction of two measurements, is equal to?

1. Sum of their absolute uncertainties
2. The difference of their absolute uncertainties
3. Product of their absolute uncertainties
4. Division of their absolute uncertainties

A

Q.26: Which one is the highest power multiple?

1. Giga
2. Peta
3. Mega
4. Deca

B

Q.27: One femto stands for?

1. 10^-15
2. 10^-12
3. 10^-9
4. 10^-6

A

Q.28: Percentage uncertainty in radius r is 2%. The percentage uncertainty in the volume of a sphere is?

1. 4%
2. 6%
3. 8%
4. 9%

B

Q.29: The unit of force is _______ and its symbol is ________ . Which is the correct pair?

1. Newton, n
2. Newton, N
3. newton, n
4. newton, N

D

Q.30: Which of the following length is more precise measured by the instrument having least count of 0.00001cm? (1) 5cm (2) 5.00cm (3) 5.000cm (4) 5.00000cm?

1. 1
2. 2
3. 3
4. 4

D

Q.31: Which one is the derived quantity in SI units?

1. Electric current
2. Electric charge
3. Plane angle
4. Amount of substance

B

Q.32: Which one is the correct representation of the unit of pressure?

1. Newton / Meter²
2. newton / meter²
3. Newton / meter²
4. newton / Meter²

B

Q.33: Which one is the dimensionally correct equation?

1. f=vt
2. S=Vit + ½ at²
3. V=St
4. V=f/t

B

Q.34: Zero error of the instrument is a type of?

1. Random error
2. Personal error
3. Systematic error
4. Classified error

C

Q.35: In multiplication and division of measurement?

1. Percentage uncertainties are added?
2. Absolute uncertainties are added
3. Percentage uncertainties are divided
4. Absolute uncertainties are divided

D

Q.36: The number of significant figures in 5.400 are?

1. Three
2. Five
3. Two
4. None

D

Q.37: To reduce the uncertainty in the timing experiment?

1. Use the highly precise instrument
2. Conduct at room temperature
3. Count number of vibration
4. Both a and c

D

Q.38: The number of significant figures in the length of a bar 9800mm measured by meter rod is?

1. Four
2. Three
3. Two
4. None of these

A

Q.39: A wire when heated shows a 2% increase in length. The increase in the cross-section area would be?

1. 1%
2. 2%
3. 4%
4. 8%

C

Q.40: Which of the following is not a correct representation method of prefixes?

1. 1mm
2. 10km
3. 1000 μ
4. Both a and b

C