## Physical Quantities and Measurement – MCQ’s

**The branch of science which deals with the study of properties of matter, energy and their mutual relationship is called:**

**(a)** Astronomy

**(b)** Physics ✓

**(c)** Geology

**(d)** Chemistry

**The study of properties of the ionic state of matter is called**

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**(a)**Plasma Physics ✓

**(b)** Astrophysics

**(c)** Sound

**(d)** Electromagnetism

**The study of internal structure of earth and its activities like seismography is called:(GRW 2013, 2015)**

**(a)** Solid state physics

**(b)** Heat

**(c)** Mechanics

**(d)** Geophysics ✓

**The study of the isolated nuclei of an atom is called:**

**(a)** Plasma Physics

**(b)** Astrophysics

**(c)** Nuclear Physics ✓

**(d)** Biophysics

**Much of the universe is made up of:**

**(a)** Solid

**(b)** Liquid

**(c)** Plasma ✓

**(d)** All of above

**The international system of units is abbreviated as:**

**(a)** IS

**(b)** SI ✓

**(c)** Both a & b

**(d)** none

**The terms used internationally for multiples and submultiples of various units are known as:**

**(a)** Standard

**(b)** Scientific notation

**(c)** Prefixes ✓

**(d)** All of above

**Meter rule can measure the length accurately up to:**

**(a)** 1 mm ✓

**(b)** 1 cm

**(c)** 1 m

**(d)** 1 km

**————- can accurately measure up to one tenth of a millimeter.**

**(a)** Meter rule

**(b)** Vernier callipers ✓

**(c)** Screw Gauge

**(d)** All

**The SI unit of intensity of light is:**

**(a)** Newton

**(b)** Kelvin

**(c)** Kilogram

**(d)** Candela ✓

**One meter is equal to:**

**(a)** 10^{3 }mm

**(b)** 10^{-3 }km

**(c)** 10^{2} cm

**(d)** All ✓

**Volume measuring scale has a vertical scale in:**

**(a)** Milliliter

**(b)** cm^{3}

**(c)** Both a & b ✓

**(d)** none

**One Femto is equal to:**

**(a)** 10^{15}

**(b)** 10^{-15 ✓}

**(c)** 10^{-9}

**(d)** 10^{-12}

**The least count of vernier calipers is: (LHR 2015)**

**(a)** 0.1cm

**(b)** 0.1mm

**(c)** 0.01cm

**(d)** Both b & c ✓

**Total length of the vernier scale is:**

**(a)** 1mm

**(b)** 9 mm ✓

**(c)** 10 mm

**(d)** 1 cm

**Number of divisions on the vernier scale are:**

**(a)** 1

**(b)** 9

**(c)** 10 ✓

**(d)** 100

**Length of the smallest division on main scale of the vernier calipers is:**

**(a)** 1 cm

**(b)** 1 mm ✓

**(c)** 0.9 mm

**(d)** All

**Separation between division on the vernier scale of the vernier calipers is:**

**(a)** 1 cm

**(b)** 1 mm

**(c)** 0.9 mm ✓

**(d)** All

**If zero of the vernier scale is on the right side of the zero of the main scale then it is known as**———— zero error:

**(a)** Positive ✓

**(b)** Negative

**(c)** No error

**(d)** none of these

**If zero of the vernier scale is on the left side of the zero of the main scale then it is known as**———— zero error:

**(a)** Positive

**(b)** Negative ✓

**(c)** None of these

**(d)** No error

**If zero of the vernier scale is on the right side of the zero of the main scale then zero error is to be:**

**(a)** Added

**(b)** Subtracted ✓

**(c)** Multiplied

**(d)** Divided

**If zero of the vernier scale is on the left side of the zero of the main scale then zero error is**to be:

**(a)** Added ✓

**(b)** Subtracted

**(c)** Multiplied

**(d)** Divided

**The least count of Screw Gauge is:**

**(a)** 0.1 mm

**(b)** 0.01 mm ✓

**(c)** 0.1 cm

**(d)** 0.01 cm

**Total number of divisions on the circular scale of Screw Gauge are:**

**(a)** 10

**(b)** 20

**(c)** 100 ✓

**(d)** 200

**Pitch of the screw gauge is:**

**(a)** 1m

**(b)** 1 mm ✓

**(c)** 1 cm

**(d)** 0.1 mm

**If the zero of the circular scale is above the horizontal line then the zero error will be:**

**(a)** Positive

**(b)** Negative ✓

**(c)** None of these

**(d)** No error

**If the zero of the circular scale is below the horizontal line then the zero error will be:**

**(a)** Positive ✓

**(b)** Negative

**(c)** None of these

**(d)** No error

**If the zero of the circular scale is above the horizontal line then the zero error is to be:**

**(a)** Added ✓

**(b)** Subtracted

**(c)** Multiplied

**(d)** Divided

**If the zero of the circular scale is below the horizontal line then the zero error is to be:**

**(a)** Added

**(b)** Subtracted ✓

**(c)** Multiplied

**(d)** Divided

**For scientific notation internationally accepted practice is that there should be ——- digit(s) before the decimal point.**

**(a)** One ✓

**(b)** Two

**(c)** Three

**(d)** No

**In screw gauge, the distance moved forward or backward in one complete rotation of the circular scale is known as:**

**(a)** Least count

**(b)** Pitch ✓

**(c)** Constant

**(d)** None of above

**A physical balance is used to measure:**

**(a)** Weight

**(b)** Volume

**(c)** Length

**(d)** mass ✓

**Least count of mechanical stop watch is:**

**(a)** 1 second

**(b)** 1 minute

**(c)** 0.1 second ✓

**(d)** 0.01 second

**Least count of digital stop watch is:**

**(a)** 1 second

**(b)** 1 minute

**(c)** 0.1 second

**(d)** 0.01 second ✓

**In any measurement, the accurately known digits and first doubtful digit are known as:**

**(a)** Prefixes

**(b)** Significant figures ✓

**(c)** Real numbers

**(d)** All

**The radius of wire is 0.022 cm. The number of significant figures in the measurements are:**

**(a)** 1

**(b)** 2 ✓

**(c)** 3

**(d)** 4

**The number of significant figures in 1.406 are:**

**(a)** 4 ✓

**(b)** 3

**(c)** 2

**(d)** 1

**The number of significant figures in 1.40 x 10**^{5}are:

**(a)** 1

**(b)** 2

**(c)** 3 ✓

**(d)** 4

**Vernier constant is also known as ———— of vernier calipers:**

**(a)** Pitch

**(b)** Proportionality constant

**(c)** Vernier value

**(d)** least count ✓

**The zeros in between the digits are considered:**

**(a)** Significant ✓

**(b)** Insignificant

**(c)** Constant

**(d)** None of above

**10**^{6}Stands for:

**(a)** Micro

**(b)** Pico

**(c)** Nino

**(d)** Mega ✓

**1μs is equal to:**

**(a)** 10^{-9} s

**(b)** 10^{-3} s

**(c)** 10^{-6} s ✓

**(d)** 10^{-12} s

**To measure correctly the volume of the liquid, the eye must be kept on the ———— surface of meniscus:**

**(a)** Lower ✓

**(b)** Upper

**(c)** Middle

**(d)** All of above

**SI unit of electric charge is**

**(a)** Ampere

**(b)** Kelvin

**(c)** Pascal

**(d)** Coulomb ✓

**The word science is derived from the Latin word**

**(a)** Scientia ✓

**(b)** Santia

**(c)** Scient

**(d)** None of these

**Least count of digital vernier callipers is**

**(a)** 0.1mm

**(b)** 0.01 mm ✓

**(c)** 0.001 mm

**(d)** 1 mm

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