# MCQS of Physics 1st Year Chapter 1

Here are the MCQs of physics 1st year chapter 1 for F.Sc Part I students. You can download all chapter free Notes for 1st year here. The other chapters MCQs notes of Physics are listed below.

## Physics 1st year chapter 1 MEASUREMENTS

1. The branch of physics which deals with the ultimate particles of which the matter is composed is:
a) Plasma physics
b) Atomic physics
c) Nuclear physics
d) Particle physics

2. The branch of physics which deals with atomic nuclei is called
a) Acoustics
b) Thermodynamics
c) Magnetism
d) Nuclear physics

3. Silicon is abundantly obtained from:
a) Water
b) Metal
c) Sand
d) Stones

4. The number of base units are:
a) Three
b) Five
c) Seven
d) Nine

5. Which of the following is a derived quantity:
a) Force
b) Mass
c) Length
d) Time

6. Which of the following is SI base unit?
a) gram
b) slug
c) Newton
d) kilogram

7. Which one of the following is not a unit of length:
a) Angstrom
b) Micron
d) Light year

8. Which is not a base unit in SI units?
a) Kilogram
b) Joule
c) Ampere
d) Kelvin

9. An example of derived unit is
a) Candela
b) Ampere
c) Coulomb
d) Mole

10. Candela is the SI unit of
a) Charge
b) Luminous intensity
c) Power
d) Refractive index

11. An alternate unit to  kgms^-1  is
a) Js
b) Ns
c) Nm
d) N

12. The SI units of pressure in terms of base units are
13. The SI unit of plane angle is
c) Degree
d) Candela

14. Steradian is the angel which lies in:
a) One dimension
b) Two dimensions
c) Three dimensions
d) None

15. The SI unit of the solid angle is
a) Degree
c) Revolution

16. The solid angle subtended at the center of sphere by an area of its surface equal to the square of radius of the sphere is called:
a) Degree
c) Minute

17. SI unit of pressure is
18. Which is a derived unit:
a) Candela
b) Ampere
c) Kelvin
d) Newton

19. The unit of force is________ and its symbol is _______ which is the correct pair?
a) Newton, n
b) Newton, N
c) newton, n
d) newton, N

20. Which one is the correct representation of the unit of pressure?
a) Newton/Meter2
b) newton/meter2
c) Newton/meter2
d) Newton/Meter2

21. Which of the following is least multiple:
a) Pico
b) Femto
c) Nano
d) Atto

22. Which one is the highest power multiple?
a) giga
b) mega
c) kilo
d) deca

23. The prefix pico is equal to
24. The SI unit of intensity of light is:
a) Mole
b) Kelvin
c) Candela
d) Ampere
27. Error occurs due to negligence and inexperience of a person is:
a) Systematic Error
b) Random Error
c) Personal Error
d) None

28. Error in measurement may occur due to
a) Inexperience of a person
b) The faulty apparatus
c) Inappropriate method
d) Due to all reasons in a, b and c

29. In any measurement the significant figures are
a) All accurately known and all doubtful digits
b) Only accurately known digits
c) Only doubtful digits
d) All accurately know digits and the first doubtful digit

30. Number of significant figures in 0.0173 are:
a) Three
b) Four
c) Five
d) Two

31. A student added three figures 72.1, 3.32 and 0.003. The correct answer regarding the rules of the addition of the significant figures will be
a) 75.423
b) 75.42
c) 75.4
d) 75

32. If the reading is taken with measuring scale whose minimum division is 1mm, then the correct reading is:
a) 0.2145 m
b) 0.21 m
c) 0.214 m
d) None

33. 75.560 is round off as:
a) 75.6
b) 75.7
c) 76.00
d) None

34. Zero to the right of non-zero digits are:
a) Significant
b) Not significant
c) May or may not be significant
d) None

35. What is the number of significant figures in the measurement recorded as 8.70 × 10 ^4 ?
a) 1
b) 3
c) 4
d) 7

36. Zero is not significant only if it
a) Lies to the left of a significant digit
b) is between two digits
c) is to the right of a significant digit
d) is before the decimal point

37. Significant figures in 0.000846 are
a) Six
b) Four
c) Seven
d) Three

38. The sum of the three numbers, 2.7543, 4.10 and 1.273, up to correct decimal places is
a) 8.1
b) 8.13
c) 8.1273
d) 8.127

39. 73.650 rounded off up to one decimal is
a) 73.6
b) 73.7
c) 74.00
d) 73.65

40. Absolute uncertainties are added in following operations:
a) Multiplication
b) Division
c) Subtraction
d) None

41. An accurate measurement is one which has less
a) Precision
b) Absolute uncertainty
c) Fractional uncertainity
d) None

43. Smaller is the least count of the instrument, more is the measurement:
a) Accurate
b) Precise
c) Accurate and precise
d) None of these

44. Which is a correct record for the diameter of wire when measured my a screw gauge of least count 0.001 cm:
a) 2.3 cm
b) 2.31 cm
c) 2.312 cm
d) 2.3124 cm

45. Which one of the following is not regarded as a fundamental quantity in Physics?
a) Length
b) Mass
c) Time
d) Weight

54. A light year is a unit for
a) Time
b) Distance
c) Velocity
d) Time period

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MCQs of Physics 1st year chapter 1 Reviewed by Saif Ullah ZahidonOctober 25, 2018 Rating: 5