Refer to JEE Physics Units and Measurements MCQs Set A provided below. JEE (Main) Full Syllabus Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Physics with answers have been prepared as per the latest syllabus, JEE (Main) books and examination pattern suggested in Full Syllabus by JEE (Main), NCERT and KVS. Multiple Choice Questions for Units and Measurements are an important part of exams for Full Syllabus Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for JEE (Main) Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Units and Measurements
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Units and Measurements in Full Syllabus. These MCQ questions with answers for Full Syllabus Physics will come in exams and help you to score good marks
Units and Measurements MCQ Questions Full Syllabus Physics with Answers
Question: The base quantity among the following is
- a) Length
- b) Area
- c) Speed
Answer: Length
Question: Which of the following is not a unit of time?
- a) Light year
- b) Hour
- c) Minute
Answer: Light year
Question: One astronomical unit is a distance equal to
- a) 1.496 × 1011 m
- b) 9.46 × 1015 m
- c) 3 × 108 m
- d) None of this
Answer: 1.496 × 1011 m
Question: The volume of a cube having sides 1.2 m is appropriately expressed as
- a) 1.728 × 106 cm3
- b) 1.7 × 106 cm3
- c) 1.8 × 106 cm3
- d) All of these
Answer: 1.728 × 106 cm3
Question: Ampere second is a unit of
- a) Charge
- b) Current
- c) Energy
- d) Power
Answer: Charge
Question: The most precise reading of the mass of an object, among the following is
- a) 20.01 g
- b) 20 × 100 g
- c) 20.0 g
- d) 20 g
Answer: 20.01 g
Question: The most accurate reading of the length of a 6.28 cm long fibre is
- a) 6.5 cm
- b) 6 cm
- c) 5.99 cm
- d) 6.0 cm
Answer: 6.5 cm
Question: Which of the following is a unit that of force?
- a) mN
- b) N m
- c) nm
- d) N s
Answer: mN
Question: The value of 60° in radian is
- a)
- b)
- c)
- d) All of these
Answer:
Question: The total plane angle subtended by a circle at its centre is
- a)
- b)
- c)
- d)
Answer:
Question:
- a)
- b)
- c)
- d) All of these
Answer:
Question: One unified atomic mass unit represents a mass of magnitude
- a) 1.66 × 10–27kg
- b) 1030 kg
- c) 1.66 × 1027 kg
- d) 10–30 kg
Answer: 1.66 × 10–27kg
Question: If the average life of a person is taken as 100 s, the age of the universe on this scale is of the order
- a) 1010 s
- b) 108 s
- c) 1017 s
- d) 109 s
Answer: 1010 s
Question: Which of the following is the most precise measurement?
- a) 300 × 10–5 m
- b) 30 × 10–4 m
- c) 0.0030 m
- d) 3 × 10–3 m
Answer: 300 × 10–5 m
Question: The number of significant figures in a pure number 410 is
- a) Infinite
- b) One
- c) Three
- d) Two
Answer: Infinite
Question: Thickness of a pencil measured by using a screw gauge (least count .001 cm) comes out to be 0.802 cm. The percentage error in the measurement is
- a) 0.125%
- b) 2.43%
- c) 4.12%
- d) 2.14%
Answer: 0.125%
Question: The percentage error in the measurement of the voltage V is 3% and in the measurement of the current is 5%2%. The percentage error in the measurement of the resistance is
- a) 5%
- b) 1%
- c) 2%
- d) 3%
Answer: 5%
Question: The relative error in the measurement of the side of a cube is 0.027. The relative error in the measurement of its volume is
- a) 0.081
- b) 0.046
- c) 0.054
- d) 0.027
Answer: 0.081
Question: Zero error in an instrument introduces
- a) Systematic error
- b) Random error
- c) Least count error
- d) Personal error
Answer: Systematic error
Question: A packet contains silver powder of mass 20.23 g ± 0.01 g. Some of the powder of mass 5.75 g ± 0.01 g is taken out from it. The mass of the powder left back
- a) 14.48 ± 0.02 g
- b) 14.48 g ± 0.00 g
- c) 14.5 g ± 0.1 g
- d) 14.5 g ± 0.2 g
Answer: 14.48 ± 0.02 g
More Questions..............................
Question: The addition of three masses 1.6 g, 7.32 g and 4.238 g, addressed upto proper decimal places is
- a) 13.2 g
- b) 13.158 g
- c) 13.16 g
- d) 13.15 g
Answer: 13.2 g
Question: The area of a sheet of length 10.2 cm and width 6.8 cm addressed upto proper number of significant figures is
- a) 69 cm2
- b) 70 cm2
- c) 69.4 cm2
- d) 69.36 cm2
Answer: 69 cm2
Question: The radius of a sphere is (2.6 ± 0.1) cm. The percentage error in its volume is
- a)
- b)
- c)
- d) None of this
Answer:
Question: The uncertain digit in the measurement of a length reported as 41.68 cm is
- a) 8
- b) 6
- c) 1
- d) 4
Answer: 8
Question: We can reduce random errors by
- a) Taking large number of observations
- b) By following proper technique of experiment
- c) Corrected zero error
- d) Al of this
Answer: Taking large number of observations
Question: The number of significant figures in the measured value 0.0204 is
- a) Three
- b) Five
- c) Four
- d) Two
Answer: Three
Question: The number of significant figures in the measured value 26000 is
- a) Two
- b) Five
- c) Three
- d) Infinite
Answer: Two
Question: The number of significant zeroes present in the measured value 0.020040, is
- a) Three
- b) One
- c) Two
- d) Five
Answer: Three
Question: The number of significant figures in the measured value 4.700 m is the same as that in the value
- a) 470.0 m
- b) 4070 m
- c) 0.047 m
- d) 4700 m
Answer: 470.0 m
Question: If a calculated value 2.7465 g contains only three significant figures, the two insignificant digits in it are
- a) 6 and 5
- b) 4 and 6
- c) 7 and 4
- d) 2 and 7
Answer: 6 and 5
Question: An object of mass 4.237 g occupies a volume 1.72 cm3. The density of the object to appropriate significant figures is
- a) 2.46 g cm–3
- b) 2.463 g cm–3
- c) 2.5 g cm–3
- d) 2.50 g cm–3
Answer: 2.46 g cm–3
Question: Round off the value 2.845 to three significant figures
- a) 2.84
- b) 2.85
- c) 2.80
- d) 2.83
Answer: 2.84
Question: A length 5.997 m rounded off to three significant figures is written as
- a) 6.00 m
- b) 5.99 m
- c) 5.95 m
- d) 5.90 m
Answer: 6.00 m
Question: The order of the magnitude of speed of light in SI unit is
- a) 8
- b) 16
- c) 4
- d) 7
Answer: 8
Question: The values of a number of quantities are used in a mathematical formula. The quantity that should be most precise and accurate in measurement is the one
- a) Having smallest magnitude
- b) Used in the numerator
- c) Having largest magnitude
- d) Used in the denominator
Answer: Having smallest magnitude
Question: What are the dimensions of the change in velocity?
- a) [LT–1]
- b) [MLT–1]
- c) [LT–2]
- d) None of this
Answer: [LT–1]
Question: The dimensional formula for energy is
- a) [ML2T–2]
- b) [MLT–2]
- c) [M–1L2T]
- d) All of these
Answer: [ML2T–2]
Question: The pair of the quantities having same dimensions is
- a) Wavelength, focal length
- b) Displacement, velocity
- c) Time, frequency
- d) Force, acceleration
Answer: Wavelength, focal length
Question: The dimensional formula for relative refractive index is
- a) [M0L0T0]
- b) [M1L0T0]
- c) [M1L1 T1]
- d) [MLT–1]
Answer: [M0L0T0]
Question: The dimensional formula [ML–1T–2] is for the quantity
- a) Pressure
- b) Acceleration
- c) Force
- d) Work
Answer: Pressure
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JEE (Main) Full Syllabus Physics Units and Measurements MCQs
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MCQs for Physics JEE (Main) Full Syllabus Units and Measurements
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Units and Measurements MCQs Physics JEE (Main) Full Syllabus
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Units and Measurements JEE (Main) Full Syllabus MCQs Physics
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JEE (Main) MCQs Physics Full Syllabus Units and Measurements
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