# 100+ Units And Measurements (Class 11) MCQ and Answer

Units And Measurements (Class 11) MCQs and Answers plays an important role in determining that how much step you take to clear the NEET (National Eligibility Entrance Test), AIIMS (All India Institute of Medical Sciences) and JEE (Joint Entrance Examination) which are conducted by the National Testing Agency (NTA). Multiple Choice Questions On Units And Measurements PDF With Answers is very important step for you when you are choosing the right book to prepare the NEET exam.

## Class 11 Physics Units And Measurements MCQ

These Units And Measurements (Class 11) MCQs and Answers are based on the following topics:

### Class 11 Physics Units And Measurements MCQ

a) Newton

b) Joule

c) Meter

d) Newton-meter

#### 2. 89 Mega Joules can also be expressed as _____

a) 8900 Joules

b) 89000000 Joules

c) 89000 Joules

d) 890000 Joules

a) 500000 Dynes

b) 500 Dynes

c) 5 Dynes

d) 0.5 Dynes

a) MKS

b) CGS

c) SI

d) Decibel

a) Voltage

b) Current

c) Length

d) Speed

b) Degrees

#### 7. Which of the following system matches with the SI unit system?

a) FPS

b) MKS

c) CGS

d) American system

a) Degree

b) Meter

c) Second

d) Fahrenheit

a) 1

b) 10

c) 7

d) 8

a) Candela

b) Lightyear

c) Meter

d) Mol

#### 11. What is the full form of SI?

a) Standard International

b) System International

c) Scientific International

d) Science International

a) Beam balance

b) Clock

c) Our hands

d) Water

#### 13. Mass is a _____

a) Scalar quantity

b) Vector quantity

c) Free quantity

d) Dependent quantity

a) Mass

b) Time

c) Pressure

d) Force

a) Kilogram

b) Newton

c) Second

d) Mile

a) Gram

b) Kilogram

c) Pound

d) Dozen

#### 17. Which of the following is the correct relation?

a) 1 Kg = 100 g

b) 1 Kg = 1 g

c) 1 g = 0.001 Kg

d) 1 g = 0.01 Kg

#### 18. Mass can be explained as _____

a) Amount of space

b) Amount of time

c) Amount of weight

d) Amount of matter

a) Meter

b) Kilometer

c) Mile

d) Centimeter

#### 20. Which of the following devices cannot measure distance?

a) Vernier Calipers

b) Micrometer

c) Ruler

d) Protractor

a) 12

b) 36

c) 6

d) 18

a) 1

b) 2.5

c) 0.5

d) 1.6

a) 1

b) 1.536

c) 1.852

d) 1.756

a) 0.01 cm

b) 0.001 cm

c) 0.1 cm

d) 1 mm

#### 25. How many kilometers make one light year?

a) 9.4607 × 1012 km

b) 9.4607 × 109 km

c) 9.4607 × 1011 km

d) 9.4607 × 1010 km

a) Light year

b) Kilometer

c) Megameter

d) Watt

a) Second

b) Light year

c) Tropical year

d) Minute

a) Hertz

b) Decibel

c) Second

d) Meter

a) 10

b) 60

c) 45

d) 80

a) 10

b) 20

c) 4

d) 5

a) 1000

b) 100

c) 10

d) 70

a) Wall clock

b) Digital watch

c) Quartz clock

d) Atomic clock

#### 33. Which of the following is equivalent to one hour?

a) 36000 milliseconds

b) 3600 milliseconds

c) 3600000 milliseconds

d) 360000 milliseconds

a) Precise

b) Accurate

c) Average

d) Invalid

#### 35. Range of an instrument is _____

a) The minimum value that can be measured

b) The maximum value that can be measured

c) All values starting from the minimum to the maximum that can be measured

d) The average of all values that can be measured

a) 2

b) 3

c) 4

d) 5

#### 37. What is least count of an instrument?

a) The lowest value that can be measured accurately

b) The greatest value that can be measured accurately

c) Half of the lowest value that can be measured accurately

d) Mean of the lowest and highest values

a) Accurate

b) Precise

c) Suitable

d) Mean

#### 39. What is the reason for the occurrence of systematic errors in an instrument ?

a) No use for a long time

b) High use

c) Manufacturing fault

d) Delivery fault

#### 40. How are systematic errors removed usually for an instrument?

a) By replacing it

b) By re-calibrating it

c) By using a repairing service

d) By not using it for some time

a) 22.55

b) 26.55

c) 26.6

d) 22

a) 6

b) 5

c) 3

d) 4

a) 5.9×103

b) 59×104

c) 5.9×102

d) 5.9×104

a) 5

b) 6

c) 7

d) 8

a) 75.67

b) 75.669

c) 75.668

d) 75.667

a) 12.67

b) 12.167

c) 12.17

d) 13

a) 7

b) 8

c) 5

d) 6

a) 5

b) 4

c) 3

d) 6

a) 104

b) 103.5

c) 103

d) 100

a) 1

b) 5

c) 7

d) 6

#### 51. [MLT-2] matches with the dimensional formula of ___

a) Force

b) Modulus of elasticity

c) Displacement

d) Strain

a) 6

b) 5

c) 3

d) 2

L = (vT/M)x?

a) 3

b) 2

c) 1

d) 0

a) v/a

b) P/Fv

c) FE/L

d) V2/g

a) 1

b) 0.25

c) 0.5

d) 2

a) L

b) T

c) LT-1

d) M

#### 57. What are the dimensions of coefficient of friction?

a) MLT-2

b) LT-1

c) L

d) It is dimensionless

a) Mass

b) Density

c) Speed

d) Volume

#### 59. Which of the following is a use of dimensional analysis?

a) To check the dimensional correctness of an equation

b) To solve the equation dimensionally

c) To get the number of dimensional constants

d) To understand the dimensional equation

#### 60. The dimension whose unit does not depend on any other dimension’s unit is known as ________

a) Fundamental dimension

b) Dependent dimension

c) Independent dimension

d) Absolute dimension

### FAQs on Units And Measurements

What are the 7 fundamental units?

The seven SI base units are the most basic physical quantities in the SI. The base units are the foundation of the International System of Units (Si), which is known as the modern metric system. These are
1) Length – meter (m)
2) Time – second (s)
3) Amount of substance – mole (mole)
4) Electric current – ampere (A)
5) Temperature – kelvin (K)
6) Luminous intensity – candela (cd)
7) Mass – kilogram (kg)

What is unit and measurement in physics?

A unit is a physical quantity upon which a numerical value can be assigned. For example, mass and time are physical quantities but cannot be directly measured in the laboratory. However, they can be measured in terms of their units, such as kilograms and seconds. If we know how to measure either one of them in terms of its units, we will be able to find out the value of the other quantity if we know its unit.

What are the important topics in units and Measurements Class 11?

The most important topics in units and Measurements Class 11 are Length, Mass and Time Measurements, Instruments Accuracy and Precision, Significant Figures, Dimensional Formulae and Equations, Physical Quantities (dimensions), Dimensional Analysis and Applications.